diff --git a/test/common/wpt.js b/test/common/wpt.js
index 9558b9a4e8d917..57c409f5cc8a0f 100644
--- a/test/common/wpt.js
+++ b/test/common/wpt.js
@@ -453,14 +453,13 @@ class WPTRunner {
     this.scriptsModifier = modifier;
   }
 
-  fullInitScript(hasSubsetScript, locationSearchString) {
+  fullInitScript(url, metaTitle) {
     let { initScript } = this;
-    if (hasSubsetScript || locationSearchString) {
-      initScript = `${initScript}\n\n//===\nglobalThis.location ||= {};`;
-    }
 
-    if (locationSearchString) {
-      initScript = `${initScript}\n\n//===\nglobalThis.location.search = "${locationSearchString}";`;
+    initScript = `${initScript}\n\n//===\nglobalThis.location = new URL("${url.href}");`;
+
+    if (metaTitle) {
+      initScript = `${initScript}\n\n//===\nglobalThis.META_TITLE = "${metaTitle}";`;
     }
 
     if (this.globalThisInitScripts.length === null) {
@@ -553,13 +552,13 @@ class WPTRunner {
       const relativePath = spec.getRelativePath();
       const harnessPath = fixtures.path('wpt', 'resources', 'testharness.js');
       const scriptsToRun = [];
-      let hasSubsetScript = false;
+      let needsGc = false;
 
       // Scripts specified with the `// META: script=` header
       if (meta.script) {
         for (const script of meta.script) {
-          if (script === '/common/subset-tests.js' || script === '/common/subset-tests-by-key.js') {
-            hasSubsetScript = true;
+          if (script === '/common/gc.js') {
+            needsGc = true;
           }
           const obj = {
             filename: this.resource.toRealFilePath(relativePath, script),
@@ -592,12 +591,13 @@ class WPTRunner {
             testRelativePath: relativePath,
             wptRunner: __filename,
             wptPath: this.path,
-            initScript: this.fullInitScript(hasSubsetScript, variant),
+            initScript: this.fullInitScript(new URL(`/${relativePath.replace(/\.js$/, '.html')}${variant}`, 'http://wpt'), meta.title),
             harness: {
               code: fs.readFileSync(harnessPath, 'utf8'),
               filename: harnessPath,
             },
             scriptsToRun,
+            needsGc,
           },
         });
         this.workers.set(testFileName, worker);
@@ -749,11 +749,7 @@ class WPTRunner {
    */
   resultCallback(filename, test, reportResult) {
     const status = this.getTestStatus(test.status);
-    const title = this.getTestTitle(filename);
-    if (/^Untitled( \d+)?$/.test(test.name)) {
-      test.name = `${title}${test.name.slice(8)}`;
-    }
-    console.log(`---- ${title} ----`);
+    console.log(`---- ${test.name} ----`);
     if (status !== kPass) {
       this.fail(filename, test, status, reportResult);
     } else {
diff --git a/test/common/wpt/worker.js b/test/common/wpt/worker.js
index 34368ab5c5beff..14d3d887aad5eb 100644
--- a/test/common/wpt/worker.js
+++ b/test/common/wpt/worker.js
@@ -1,22 +1,29 @@
 'use strict';
 
-const { runInThisContext } = require('vm');
+const { runInNewContext, runInThisContext } = require('vm');
+const { setFlagsFromString } = require('v8');
 const { parentPort, workerData } = require('worker_threads');
 
 const { ResourceLoader } = require(workerData.wptRunner);
 const resource = new ResourceLoader(workerData.wptPath);
 
-global.self = global;
-global.GLOBAL = {
+if (workerData.needsGc) {
+  // See https://github.com/nodejs/node/issues/16595#issuecomment-340288680
+  setFlagsFromString('--expose-gc');
+  globalThis.gc = runInNewContext('gc');
+}
+
+globalThis.self = global;
+globalThis.GLOBAL = {
   isWindow() { return false; },
   isShadowRealm() { return false; },
 };
-global.require = require;
+globalThis.require = require;
 
 // This is a mock, because at the moment fetch is not implemented
 // in Node.js, but some tests and harness depend on this to pull
 // resources.
-global.fetch = function fetch(file) {
+globalThis.fetch = function fetch(file) {
   return resource.read(workerData.testRelativePath, file, true);
 };
 
diff --git a/test/fixtures/wpt/FileAPI/Blob-methods-from-detached-frame.html b/test/fixtures/wpt/FileAPI/Blob-methods-from-detached-frame.html
new file mode 100644
index 00000000000000..37efd5ed2016b7
--- /dev/null
+++ b/test/fixtures/wpt/FileAPI/Blob-methods-from-detached-frame.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Blob methods from detached frame work as expected</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<iframe id="emptyDocumentIframe" src="../support/empty-document.html"></iframe>
+
+<script>
+const BlobPrototypeFromDetachedFramePromise = new Promise(resolve => {
+    emptyDocumentIframe.onload = () => {
+        const BlobPrototype = emptyDocumentIframe.contentWindow.Blob.prototype;
+        emptyDocumentIframe.remove();
+        resolve(BlobPrototype);
+    };
+});
+
+const charCodeArrayToString = charCodeArray => Array.from(charCodeArray, c => String.fromCharCode(c)).join("");
+const charCodeBufferToString = charCodeBuffer => charCodeArrayToString(new Uint8Array(charCodeBuffer));
+
+promise_test(async () => {
+    const { slice } = await BlobPrototypeFromDetachedFramePromise;
+    const blob = new Blob(["foobar"]);
+
+    const slicedBlob = slice.call(blob, 1, 3);
+    assert_true(slicedBlob instanceof Blob);
+
+    assert_equals(await slicedBlob.text(), "oo");
+    assert_equals(charCodeBufferToString(await slicedBlob.arrayBuffer()), "oo");
+
+    const reader = slicedBlob.stream().getReader();
+    const { value } = await reader.read();
+    assert_equals(charCodeArrayToString(value), "oo");
+}, "slice()");
+
+promise_test(async () => {
+    const { text } = await BlobPrototypeFromDetachedFramePromise;
+    const blob = new Blob(["foo"]);
+
+    assert_equals(await text.call(blob), "foo");
+}, "text()");
+
+promise_test(async () => {
+    const { arrayBuffer } = await BlobPrototypeFromDetachedFramePromise;
+    const blob = new Blob(["bar"]);
+
+    const charCodeBuffer = await arrayBuffer.call(blob);
+    assert_equals(charCodeBufferToString(charCodeBuffer), "bar");
+}, "arrayBuffer()");
+
+promise_test(async () => {
+    const { stream } = await BlobPrototypeFromDetachedFramePromise;
+    const blob = new Blob(["baz"]);
+
+    const reader = stream.call(blob).getReader();
+    const { value } = await reader.read();
+    assert_equals(charCodeArrayToString(value), "baz");
+}, "stream()");
+</script>
diff --git a/test/fixtures/wpt/FileAPI/BlobURL/cross-partition.tentative.https.html b/test/fixtures/wpt/FileAPI/BlobURL/cross-partition.tentative.https.html
new file mode 100644
index 00000000000000..c75ce07d054eb7
--- /dev/null
+++ b/test/fixtures/wpt/FileAPI/BlobURL/cross-partition.tentative.https.html
@@ -0,0 +1,276 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<meta name="timeout" content="long">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="/common/utils.js"></script>
+<script src="/common/dispatcher/dispatcher.js"></script>
+<!-- Pull in executor_path needed by newPopup / newIframe -->
+<script src="/html/cross-origin-embedder-policy/credentialless/resources/common.js"></script>
+<!-- Pull in importScript / newPopup / newIframe -->
+<script src="/html/anonymous-iframe/resources/common.js"></script>
+<body>
+<script>
+
+const did_revoke_response = "URL.revokeObjectURL did revoke";
+const did_not_revoke_response = "URL.revokeObjectURL did not revoke";
+
+const can_blob_url_be_revoked_js = (blob_url, response_queue_name) => `
+  async function test() {
+    if (!('revokeObjectURL' in URL)) {
+      return send("${response_queue_name}", "URL.revokeObjectURL is not exposed");
+    }
+    try {
+      var blob = await fetch("${blob_url}").then(response => response.blob());
+      await blob.text();
+    } catch {
+      return send("${response_queue_name}", "Blob URL invalid");
+    }
+    try {
+      URL.revokeObjectURL("${blob_url}");
+    } catch(e) {
+      return send("${response_queue_name}", e.toString());
+    }
+    try {
+      const blob = await fetch("${blob_url}").then(response => response.blob());
+    } catch(e) {
+      return send("${response_queue_name}", "${did_revoke_response}");
+    }
+    return send("${response_queue_name}", "${did_not_revoke_response}");
+  }
+  await test();
+`;
+
+const add_iframe_js = (iframe_origin, response_queue_uuid) => `
+  const importScript = ${importScript};
+  await importScript("/html/cross-origin-embedder-policy/credentialless" +
+                   "/resources/common.js");
+  await importScript("/html/anonymous-iframe/resources/common.js");
+  await importScript("/common/utils.js");
+  await send("${response_queue_uuid}", newIframe("${iframe_origin}"));
+`;
+
+const same_site_origin = get_host_info().HTTPS_ORIGIN;
+const cross_site_origin = get_host_info().HTTPS_NOTSAMESITE_ORIGIN;
+
+async function create_test_iframes(t, response_queue_uuid) {
+
+  // Create a same-origin iframe in a cross-site popup.
+  const not_same_site_popup_uuid = newPopup(t, cross_site_origin);
+  await send(not_same_site_popup_uuid,
+       add_iframe_js(same_site_origin, response_queue_uuid));
+  const iframe_1_uuid = await receive(response_queue_uuid);
+
+  // Create a same-origin iframe in a same-site popup.
+  const same_origin_popup_uuid = newPopup(t, same_site_origin);
+  await send(same_origin_popup_uuid,
+       add_iframe_js(same_site_origin, response_queue_uuid));
+  const iframe_2_uuid = await receive(response_queue_uuid);
+
+  return [iframe_1_uuid, iframe_2_uuid];
+}
+
+promise_test(t => {
+  return new Promise(async (resolve, reject) => {
+    try {
+      const response_queue_uuid = token();
+
+      const [iframe_1_uuid, iframe_2_uuid] =
+        await create_test_iframes(t, response_queue_uuid);
+
+      const blob = new Blob(["blob data"], {type : "text/plain"});
+      const blob_url = window.URL.createObjectURL(blob);
+      t.add_cleanup(() => window.URL.revokeObjectURL(blob_url));
+
+      await send(iframe_1_uuid,
+           can_blob_url_be_revoked_js(blob_url, response_queue_uuid));
+      var response = await receive(response_queue_uuid);
+      if (response !== did_not_revoke_response) {
+        reject(`Blob URL was revoked in not-same-top-level-site iframe: ${response}`);
+      }
+
+      await send(iframe_2_uuid,
+           can_blob_url_be_revoked_js(blob_url, response_queue_uuid));
+      response = await receive(response_queue_uuid);
+      if (response !== did_revoke_response) {
+        reject(`Blob URL wasn't revoked in same-top-level-site iframe: ${response}`);
+      }
+
+      resolve();
+    } catch (e) {
+      reject(e);
+    }
+  });
+}, "Blob URL shouldn't be revocable from a cross-partition iframe");
+
+const newWorker = (origin) => {
+  const worker_token = token();
+  const worker_url = origin + executor_worker_path + `&uuid=${worker_token}`;
+  const worker = new Worker(worker_url);
+  return worker_token;
+}
+
+promise_test(t => {
+  return new Promise(async (resolve, reject) => {
+    try {
+      const response_queue_uuid = token();
+
+      const create_worker_js = (origin) => `
+        const importScript = ${importScript};
+        await importScript("/html/cross-origin-embedder-policy/credentialless" +
+                         "/resources/common.js");
+        await importScript("/html/anonymous-iframe/resources/common.js");
+        await importScript("/common/utils.js");
+        const newWorker = ${newWorker};
+        await send("${response_queue_uuid}", newWorker("${origin}"));
+      `;
+
+      const [iframe_1_uuid, iframe_2_uuid] =
+        await create_test_iframes(t, response_queue_uuid);
+
+      // Create a dedicated worker in the cross-top-level-site iframe.
+      await send(iframe_1_uuid, create_worker_js(same_site_origin));
+      const worker_1_uuid = await receive(response_queue_uuid);
+
+      // Create a dedicated worker in the same-top-level-site iframe.
+      await send(iframe_2_uuid, create_worker_js(same_site_origin));
+      const worker_2_uuid = await receive(response_queue_uuid);
+
+      const blob = new Blob(["blob data"], {type : "text/plain"});
+      const blob_url = window.URL.createObjectURL(blob);
+      t.add_cleanup(() => window.URL.revokeObjectURL(blob_url));
+
+      await send(worker_1_uuid,
+           can_blob_url_be_revoked_js(blob_url, response_queue_uuid));
+      var response = await receive(response_queue_uuid);
+      if (response !== did_not_revoke_response) {
+        reject(`Blob URL was revoked in not-same-top-level-site dedicated worker: ${response}`);
+      }
+
+      await send(worker_2_uuid,
+           can_blob_url_be_revoked_js(blob_url, response_queue_uuid));
+      response = await receive(response_queue_uuid);
+      if (response !== did_revoke_response) {
+        reject(`Blob URL wasn't revoked in same-top-level-site dedicated worker: ${response}`);
+      }
+
+      resolve();
+    } catch (e) {
+      reject(e);
+    }
+  });
+}, "Blob URL shouldn't be revocable from a cross-partition dedicated worker");
+
+const newSharedWorker = (origin) => {
+  const worker_token = token();
+  const worker_url = origin + executor_worker_path + `&uuid=${worker_token}`;
+  const worker = new SharedWorker(worker_url, worker_token);
+  return worker_token;
+}
+
+promise_test(t => {
+  return new Promise(async (resolve, reject) => {
+    try {
+      const response_queue_uuid = token();
+
+      const create_worker_js = (origin) => `
+        const importScript = ${importScript};
+        await importScript("/html/cross-origin-embedder-policy/credentialless" +
+                         "/resources/common.js");
+        await importScript("/html/anonymous-iframe/resources/common.js");
+        await importScript("/common/utils.js");
+        const newSharedWorker = ${newSharedWorker};
+        await send("${response_queue_uuid}", newSharedWorker("${origin}"));
+      `;
+
+      const [iframe_1_uuid, iframe_2_uuid] =
+        await create_test_iframes(t, response_queue_uuid);
+
+      // Create a shared worker in the cross-top-level-site iframe.
+      await send(iframe_1_uuid, create_worker_js(same_site_origin));
+      const worker_1_uuid = await receive(response_queue_uuid);
+
+      // Create a shared worker in the same-top-level-site iframe.
+      await send(iframe_2_uuid, create_worker_js(same_site_origin));
+      const worker_2_uuid = await receive(response_queue_uuid);
+
+      const blob = new Blob(["blob data"], {type : "text/plain"});
+      const blob_url = window.URL.createObjectURL(blob);
+      t.add_cleanup(() => window.URL.revokeObjectURL(blob_url));
+
+      await send(worker_1_uuid,
+           can_blob_url_be_revoked_js(blob_url, response_queue_uuid));
+      var response = await receive(response_queue_uuid);
+      if (response !== did_not_revoke_response) {
+        reject(`Blob URL was revoked in not-same-top-level-site shared worker: ${response}`);
+      }
+
+      await send(worker_2_uuid,
+           can_blob_url_be_revoked_js(blob_url, response_queue_uuid));
+      response = await receive(response_queue_uuid);
+      if (response !== did_revoke_response) {
+        reject(`Blob URL wasn't revoked in same-top-level-site shared worker: ${response}`);
+      }
+
+      resolve();
+    } catch (e) {
+      reject(e);
+    }
+  });
+}, "Blob URL shouldn't be revocable from a cross-partition shared worker");
+
+const newServiceWorker = async (origin) => {
+  const worker_token = token();
+  const worker_url = origin + executor_service_worker_path +
+                     `&uuid=${worker_token}`;
+  const worker_url_path = executor_service_worker_path.substring(0,
+                              executor_service_worker_path.lastIndexOf('/'));
+  const scope = worker_url_path + "/not-used/";
+  const reg = await navigator.serviceWorker.register(worker_url,
+                                                     {'scope': scope});
+  return worker_token;
+}
+
+promise_test(t => {
+  return new Promise(async (resolve, reject) => {
+    try {
+      const response_queue_uuid = token();
+
+      const create_worker_js = (origin) => `
+        const importScript = ${importScript};
+        await importScript("/html/cross-origin-embedder-policy/credentialless" +
+                         "/resources/common.js");
+        await importScript("/html/anonymous-iframe/resources/common.js");
+        await importScript("/common/utils.js");
+        const newServiceWorker = ${newServiceWorker};
+        await send("${response_queue_uuid}", await newServiceWorker("${origin}"));
+      `;
+
+      const [iframe_1_uuid, iframe_2_uuid] =
+        await create_test_iframes(t, response_queue_uuid);
+
+      // Create a service worker in either iframe.
+      await send(iframe_1_uuid, create_worker_js(same_site_origin));
+      var worker_1_uuid = await receive(response_queue_uuid);
+      t.add_cleanup(() =>
+        send(worker_1_uuid, "self.registration.unregister();"));
+
+      const blob = new Blob(["blob data"], {type : "text/plain"});
+      const blob_url = window.URL.createObjectURL(blob);
+      t.add_cleanup(() => window.URL.revokeObjectURL(blob_url));
+
+      await send(worker_1_uuid,
+           can_blob_url_be_revoked_js(blob_url, response_queue_uuid));
+      const response = await receive(response_queue_uuid);
+      if (response !== "URL.revokeObjectURL is not exposed") {
+        reject(`URL.revokeObjectURL is exposed in a Service Worker context: ${response}`);
+      }
+      resolve();
+    } catch (e) {
+      reject(e);
+    }
+  });
+}, "Blob URL shouldn't be revocable from a service worker");
+</script>
+</body>
diff --git a/test/fixtures/wpt/FileAPI/blob/Blob-constructor.any.js b/test/fixtures/wpt/FileAPI/blob/Blob-constructor.any.js
index 6c34d7e34b93f9..d16f760caeeb2d 100644
--- a/test/fixtures/wpt/FileAPI/blob/Blob-constructor.any.js
+++ b/test/fixtures/wpt/FileAPI/blob/Blob-constructor.any.js
@@ -311,7 +311,16 @@ test_blob(function() {
   desc: "Passing a Float64Array as element of the blobParts array should work."
 });
 
-
+test_blob(function() {
+  return new Blob([
+    new BigInt64Array([BigInt("0x5353415053534150")]),
+    new BigUint64Array([BigInt("0x5353415053534150")])
+  ]);
+}, {
+  expected: "PASSPASSPASSPASS",
+  type: "",
+  desc: "Passing BigInt typed arrays as elements of the blobParts array should work."
+});
 
 var t_ports = async_test("Passing a FrozenArray as the blobParts array should work (FrozenArray<MessagePort>).");
 t_ports.step(function() {
diff --git a/test/fixtures/wpt/FileAPI/blob/Blob-constructor.html b/test/fixtures/wpt/FileAPI/blob/Blob-constructor.html
deleted file mode 100644
index 62a649aed66418..00000000000000
--- a/test/fixtures/wpt/FileAPI/blob/Blob-constructor.html
+++ /dev/null
@@ -1,501 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>Blob constructor</title>
-<link rel=help href="http://dev.w3.org/2006/webapi/FileAPI/#constructorBlob">
-<link rel=help href="https://heycam.github.io/webidl/#es-union">
-<link rel=help href="https://heycam.github.io/webidl/#es-dictionary">
-<link rel=help href="https://heycam.github.io/webidl/#es-sequence">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/Blob.js"></script>
-<div id="log"></div>
-<script>
-test(function() {
-  assert_true("Blob" in window, "window should have a Blob property.");
-  assert_equals(Blob.length, 0, "Blob.length should be 0.");
-  assert_true(Blob instanceof Function, "Blob should be a function.");
-}, "Blob interface object");
-
-// Step 1.
-test(function() {
-  var blob = new Blob();
-  assert_true(blob instanceof Blob);
-  assert_equals(String(blob), '[object Blob]');
-  assert_equals(blob.size, 0);
-  assert_equals(blob.type, "");
-}, "Blob constructor with no arguments");
-test(function() {
-  assert_throws_js(TypeError, function() { var blob = Blob(); });
-}, "Blob constructor with no arguments, without 'new'");
-test(function() {
-  var blob = new Blob;
-  assert_true(blob instanceof Blob);
-  assert_equals(blob.size, 0);
-  assert_equals(blob.type, "");
-}, "Blob constructor without brackets");
-test(function() {
-  var blob = new Blob(undefined);
-  assert_true(blob instanceof Blob);
-  assert_equals(String(blob), '[object Blob]');
-  assert_equals(blob.size, 0);
-  assert_equals(blob.type, "");
-}, "Blob constructor with undefined as first argument");
-
-// blobParts argument (WebIDL).
-test(function() {
-  var args = [
-    null,
-    true,
-    false,
-    0,
-    1,
-    1.5,
-    "FAIL",
-    new Date(),
-    new RegExp(),
-    {},
-    { 0: "FAIL", length: 1 },
-    document.createElement("div"),
-    window,
-  ];
-  args.forEach(function(arg) {
-    assert_throws_js(TypeError, function() {
-      new Blob(arg);
-    }, "Should throw for argument " + format_value(arg) + ".");
-  });
-}, "Passing non-objects, Dates and RegExps for blobParts should throw a TypeError.");
-
-test_blob(function() {
-  return new Blob({
-    [Symbol.iterator]: Array.prototype[Symbol.iterator],
-  });
-}, {
-  expected: "",
-  type: "",
-  desc: "A plain object with @@iterator should be treated as a sequence for the blobParts argument."
-});
-test(t => {
-  const blob = new Blob({
-    [Symbol.iterator]() {
-      var i = 0;
-      return {next: () => [
-        {done:false, value:'ab'},
-        {done:false, value:'cde'},
-        {done:true}
-      ][i++]
-      };
-    }
-  });
-  assert_equals(blob.size, 5, 'Custom @@iterator should be treated as a sequence');
-}, "A plain object with custom @@iterator should be treated as a sequence for the blobParts argument.");
-test_blob(function() {
-  return new Blob({
-    [Symbol.iterator]: Array.prototype[Symbol.iterator],
-    0: "PASS",
-    length: 1
-  });
-}, {
-  expected: "PASS",
-  type: "",
-  desc: "A plain object with @@iterator and a length property should be treated as a sequence for the blobParts argument."
-});
-test_blob(function() {
-  return new Blob(new String("xyz"));
-}, {
-  expected: "xyz",
-  type: "",
-  desc: "A String object should be treated as a sequence for the blobParts argument."
-});
-test_blob(function() {
-  return new Blob(new Uint8Array([1, 2, 3]));
-}, {
-  expected: "123",
-  type: "",
-  desc: "A Uint8Array object should be treated as a sequence for the blobParts argument."
-});
-
-var test_error = {
-  name: "test",
-  message: "test error",
-};
-
-test(function() {
-  var obj = {
-    [Symbol.iterator]: Array.prototype[Symbol.iterator],
-    get length() { throw test_error; }
-  };
-  assert_throws_exactly(test_error, function() {
-    new Blob(obj);
-  });
-}, "The length getter should be invoked and any exceptions should be propagated.");
-
-test(function() {
-  var element = document.createElement("div");
-  element.appendChild(document.createElement("div"));
-  element.appendChild(document.createElement("p"));
-  var list = element.children;
-  Object.defineProperty(list, "length", {
-    get: function() { throw test_error; }
-  });
-  assert_throws_exactly(test_error, function() {
-    new Blob(list);
-  });
-}, "A platform object that supports indexed properties should be treated as a sequence for the blobParts argument (overwritten 'length'.)");
-
-test(function() {
-  assert_throws_exactly(test_error, function() {
-    var obj = {
-      [Symbol.iterator]: Array.prototype[Symbol.iterator],
-      length: {
-        valueOf: null,
-        toString: function() { throw test_error; }
-      }
-    };
-    new Blob(obj);
-  });
-  assert_throws_exactly(test_error, function() {
-    var obj = {
-      [Symbol.iterator]: Array.prototype[Symbol.iterator],
-      length: { valueOf: function() { throw test_error; } }
-    };
-    new Blob(obj);
-  });
-}, "ToUint32 should be applied to the length and any exceptions should be propagated.");
-
-test(function() {
-  var received = [];
-  var obj = {
-    get [Symbol.iterator]() {
-      received.push("Symbol.iterator");
-      return Array.prototype[Symbol.iterator];
-    },
-    get length() {
-      received.push("length getter");
-      return {
-        valueOf: function() {
-          received.push("length valueOf");
-          return 3;
-        }
-      };
-    },
-    get 0() {
-      received.push("0 getter");
-      return {
-        toString: function() {
-          received.push("0 toString");
-          return "a";
-        }
-      };
-    },
-    get 1() {
-      received.push("1 getter");
-      throw test_error;
-    },
-    get 2() {
-      received.push("2 getter");
-      assert_unreached("Should not call the getter for 2 if the getter for 1 threw.");
-    }
-  };
-  assert_throws_exactly(test_error, function() {
-    new Blob(obj);
-  });
-  assert_array_equals(received, [
-    "Symbol.iterator",
-    "length getter",
-    "length valueOf",
-    "0 getter",
-    "0 toString",
-    "length getter",
-    "length valueOf",
-    "1 getter",
-  ]);
-}, "Getters and value conversions should happen in order until an exception is thrown.");
-
-// XXX should add tests edge cases of ToLength(length)
-
-test(function() {
-  assert_throws_exactly(test_error, function() {
-    new Blob([{ toString: function() { throw test_error; } }]);
-  }, "Throwing toString");
-  assert_throws_exactly(test_error, function() {
-    new Blob([{ toString: undefined, valueOf: function() { throw test_error; } }]);
-  }, "Throwing valueOf");
-  assert_throws_exactly(test_error, function() {
-    new Blob([{
-      toString: function() { throw test_error; },
-      valueOf: function() { assert_unreached("Should not call valueOf if toString is present."); }
-    }]);
-  }, "Throwing toString and valueOf");
-  assert_throws_js(TypeError, function() {
-    new Blob([{toString: null, valueOf: null}]);
-  }, "Null toString and valueOf");
-}, "ToString should be called on elements of the blobParts array and any exceptions should be propagated.");
-
-test_blob(function() {
-  var arr = [
-    { toString: function() { arr.pop(); return "PASS"; } },
-    { toString: function() { assert_unreached("Should have removed the second element of the array rather than called toString() on it."); } }
-  ];
-  return new Blob(arr);
-}, {
-  expected: "PASS",
-  type: "",
-  desc: "Changes to the blobParts array should be reflected in the returned Blob (pop)."
-});
-
-test_blob(function() {
-  var arr = [
-    {
-      toString: function() {
-        if (arr.length === 3) {
-          return "A";
-        }
-        arr.unshift({
-          toString: function() {
-            assert_unreached("Should only access index 0 once.");
-          }
-        });
-        return "P";
-      }
-    },
-    {
-      toString: function() {
-        return "SS";
-      }
-    }
-  ];
-  return new Blob(arr);
-}, {
-  expected: "PASS",
-  type: "",
-  desc: "Changes to the blobParts array should be reflected in the returned Blob (unshift)."
-});
-
-test_blob(function() {
-  // https://www.w3.org/Bugs/Public/show_bug.cgi?id=17652
-  return new Blob([
-    null,
-    undefined,
-    true,
-    false,
-    0,
-    1,
-    new String("stringobject"),
-    [],
-    ['x', 'y'],
-    {},
-    { 0: "FAIL", length: 1 },
-    { toString: function() { return "stringA"; } },
-    { toString: undefined, valueOf: function() { return "stringB"; } },
-    { valueOf: function() { assert_unreached("Should not call valueOf if toString is present on the prototype."); } }
-  ]);
-}, {
-  expected: "nullundefinedtruefalse01stringobjectx,y[object Object][object Object]stringAstringB[object Object]",
-  type: "",
-  desc: "ToString should be called on elements of the blobParts array."
-});
-
-test_blob(function() {
-  return new Blob([
-    new ArrayBuffer(8)
-  ]);
-}, {
-  expected: "\0\0\0\0\0\0\0\0",
-  type: "",
-  desc: "ArrayBuffer elements of the blobParts array should be supported."
-});
-
-test_blob(function() {
-  return new Blob([
-    new Uint8Array([0x50, 0x41, 0x53, 0x53]),
-    new Int8Array([0x50, 0x41, 0x53, 0x53]),
-    new Uint16Array([0x4150, 0x5353]),
-    new Int16Array([0x4150, 0x5353]),
-    new Uint32Array([0x53534150]),
-    new Int32Array([0x53534150]),
-    new Float32Array([0xD341500000])
-  ]);
-}, {
-  expected: "PASSPASSPASSPASSPASSPASSPASS",
-  type: "",
-  desc: "Passing typed arrays as elements of the blobParts array should work."
-});
-test_blob(function() {
-  return new Blob([
-    // 0x535 3415053534150
-    // 0x535 = 0b010100110101 -> Sign = +, Exponent = 1333 - 1023 = 310
-    // 0x13415053534150 * 2**(-52)
-    // ==> 0x13415053534150 * 2**258 = 2510297372767036725005267563121821874921913208671273727396467555337665343087229079989707079680
-    new Float64Array([2510297372767036725005267563121821874921913208671273727396467555337665343087229079989707079680])
-  ]);
-}, {
-  expected: "PASSPASS",
-  type: "",
-  desc: "Passing a Float64Array as element of the blobParts array should work."
-});
-
-test_blob(function() {
-  var select = document.createElement("select");
-  select.appendChild(document.createElement("option"));
-  return new Blob(select);
-}, {
-  expected: "[object HTMLOptionElement]",
-  type: "",
-  desc: "Passing an platform object that supports indexed properties as the blobParts array should work (select)."
-});
-
-test_blob(function() {
-  var elm = document.createElement("div");
-  elm.setAttribute("foo", "bar");
-  return new Blob(elm.attributes);
-}, {
-  expected: "[object Attr]",
-  type: "",
-  desc: "Passing an platform object that supports indexed properties as the blobParts array should work (attributes)."
-});
-
-var t_ports = async_test("Passing a FrozenArray as the blobParts array should work (FrozenArray<MessagePort>).");
-t_ports.step(function() {
-    var channel = new MessageChannel();
-    channel.port2.onmessage = this.step_func(function(e) {
-        var b_ports = new Blob(e.ports);
-        assert_equals(b_ports.size, "[object MessagePort]".length);
-        this.done();
-    });
-    var channel2 = new MessageChannel();
-    channel.port1.postMessage('', [channel2.port1]);
-});
-
-test_blob(function() {
-  var blob = new Blob(['foo']);
-  return new Blob([blob, blob]);
-}, {
-  expected: "foofoo",
-  type: "",
-  desc: "Array with two blobs"
-});
-
-test_blob_binary(function() {
-  var view = new Uint8Array([0, 255, 0]);
-  return new Blob([view.buffer, view.buffer]);
-}, {
-  expected: [0, 255, 0, 0, 255, 0],
-  type: "",
-  desc: "Array with two buffers"
-});
-
-test_blob_binary(function() {
-  var view = new Uint8Array([0, 255, 0, 4]);
-  var blob = new Blob([view, view]);
-  assert_equals(blob.size, 8);
-  var view1 = new Uint16Array(view.buffer, 2);
-  return new Blob([view1, view.buffer, view1]);
-}, {
-  expected: [0, 4, 0, 255, 0, 4, 0, 4],
-  type: "",
-  desc: "Array with two bufferviews"
-});
-
-test_blob(function() {
-  var view = new Uint8Array([0]);
-  var blob = new Blob(["fo"]);
-  return new Blob([view.buffer, blob, "foo"]);
-}, {
-  expected: "\0fofoo",
-  type: "",
-  desc: "Array with mixed types"
-});
-
-test(function() {
-  const accessed = [];
-  const stringified = [];
-
-  new Blob([], {
-    get type() { accessed.push('type'); },
-    get endings() { accessed.push('endings'); }
-  });
-  new Blob([], {
-    type: { toString: () => { stringified.push('type'); return ''; } },
-    endings: { toString: () => { stringified.push('endings'); return 'transparent'; } }
-  });
-  assert_array_equals(accessed, ['endings', 'type']);
-  assert_array_equals(stringified, ['endings', 'type']);
-}, "options properties should be accessed in lexicographic order.");
-
-test(function() {
-  assert_throws_exactly(test_error, function() {
-    new Blob(
-      [{ toString: function() { throw test_error } }],
-      {
-        get type() { assert_unreached("type getter should not be called."); }
-      }
-    );
-  });
-}, "Arguments should be evaluated from left to right.");
-
-[
-  null,
-  undefined,
-  {},
-  { unrecognized: true },
-  /regex/,
-  function() {}
-].forEach(function(arg, idx) {
-  test_blob(function() {
-    return new Blob([], arg);
-  }, {
-    expected: "",
-    type: "",
-    desc: "Passing " + format_value(arg) + " (index " + idx + ") for options should use the defaults."
-  });
-  test_blob(function() {
-    return new Blob(["\na\r\nb\n\rc\r"], arg);
-  }, {
-    expected: "\na\r\nb\n\rc\r",
-    type: "",
-    desc: "Passing " + format_value(arg) + " (index " + idx + ") for options should use the defaults (with newlines)."
-  });
-});
-
-[
-  123,
-  123.4,
-  true,
-  'abc'
-].forEach(arg => {
-  test(t => {
-    assert_throws_js(TypeError, () => new Blob([], arg),
-                     'Blob constructor should throw with invalid property bag');
-  }, `Passing ${JSON.stringify(arg)} for options should throw`);
-});
-
-var type_tests = [
-  // blobParts, type, expected type
-  [[], '', ''],
-  [[], 'a', 'a'],
-  [[], 'A', 'a'],
-  [[], 'text/html', 'text/html'],
-  [[], 'TEXT/HTML', 'text/html'],
-  [[], 'text/plain;charset=utf-8', 'text/plain;charset=utf-8'],
-  [[], '\u00E5', ''],
-  [[], '\uD801\uDC7E', ''], // U+1047E
-  [[], ' image/gif ', ' image/gif '],
-  [[], '\timage/gif\t', ''],
-  [[], 'image/gif;\u007f', ''],
-  [[], '\u0130mage/gif', ''], // uppercase i with dot
-  [[], '\u0131mage/gif', ''], // lowercase dotless i
-  [[], 'image/gif\u0000', ''],
-  // check that type isn't changed based on sniffing
-  [[0x3C, 0x48, 0x54, 0x4D, 0x4C, 0x3E], 'unknown/unknown', 'unknown/unknown'], // "<HTML>"
-  [[0x00, 0xFF], 'text/plain', 'text/plain'],
-  [[0x47, 0x49, 0x46, 0x38, 0x39, 0x61], 'image/png', 'image/png'], // "GIF89a"
-];
-
-type_tests.forEach(function(t) {
-  test(function() {
-    var arr = new Uint8Array([t[0]]).buffer;
-    var b = new Blob([arr], {type:t[1]});
-    assert_equals(b.type, t[2]);
-  }, "Blob with type " + format_value(t[1]));
-});
-</script>
diff --git a/test/fixtures/wpt/FileAPI/blob/Blob-in-worker.worker.js b/test/fixtures/wpt/FileAPI/blob/Blob-in-worker.worker.js
index a67060e7b85eff..a0ca84551dd7cc 100644
--- a/test/fixtures/wpt/FileAPI/blob/Blob-in-worker.worker.js
+++ b/test/fixtures/wpt/FileAPI/blob/Blob-in-worker.worker.js
@@ -1,14 +1,9 @@
 importScripts("/resources/testharness.js");
 
-async_test(function() {
-  var data = "TEST";
-  var blob = new Blob([data], {type: "text/plain"});
-  var reader = new FileReader();
-  reader.onload = this.step_func_done(function() {
-    assert_equals(reader.result, data);
-  });
-  reader.onerror = this.unreached_func("Unexpected error event");
-  reader.readAsText(blob);
-}, "Create Blob in Worker");
+promise_test(async () => {
+  const data = "TEST";
+  const blob = new Blob([data], {type: "text/plain"});
+  assert_equals(await blob.text(), data);
+}, 'Create Blob in Worker');
 
 done();
diff --git a/test/fixtures/wpt/FileAPI/blob/Blob-slice-overflow.html b/test/fixtures/wpt/FileAPI/blob/Blob-slice-overflow.html
deleted file mode 100644
index 74cd83a34f7116..00000000000000
--- a/test/fixtures/wpt/FileAPI/blob/Blob-slice-overflow.html
+++ /dev/null
@@ -1,42 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Blob slice overflow</title>
-<link rel="author" title="Intel" href="http://www.intel.com">
-<link rel="help" href="https://w3c.github.io/FileAPI/#dfn-slice">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<div id="log"></div>
-<script>
-
-var text = '';
-
-for (var i = 0; i < 2000; ++i) {
-  text += 'A';
-}
-
-test(function() {
-  var blob = new Blob([text]);
-  var sliceBlob = blob.slice(-1, blob.size);
-  assert_equals(sliceBlob.size, 1, "Blob slice size");
-}, "slice start is negative, relativeStart will be max((size + start), 0)");
-
-test(function() {
-  var blob = new Blob([text]);
-  var sliceBlob = blob.slice(blob.size + 1, blob.size);
-  assert_equals(sliceBlob.size, 0, "Blob slice size");
-}, "slice start is greater than blob size, relativeStart will be min(start, size)");
-
-test(function() {
-  var blob = new Blob([text]);
-  var sliceBlob = blob.slice(blob.size - 2, -1);
-  assert_equals(sliceBlob.size, 1, "Blob slice size");
-}, "slice end is negative, relativeEnd will be max((size + end), 0)");
-
-test(function() {
-  var blob = new Blob([text]);
-  var sliceBlob = blob.slice(blob.size - 2, blob.size + 999);
-  assert_equals(sliceBlob.size, 2, "Blob slice size");
-}, "slice end is greater than blob size, relativeEnd will be min(end, size)");
-
-</script>
-
diff --git a/test/fixtures/wpt/FileAPI/blob/Blob-slice.html b/test/fixtures/wpt/FileAPI/blob/Blob-slice.html
deleted file mode 100644
index 03fe6ca5343bd1..00000000000000
--- a/test/fixtures/wpt/FileAPI/blob/Blob-slice.html
+++ /dev/null
@@ -1,238 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>Blob slice</title>
-<link rel=help href="https://w3c.github.io/FileAPI/#slice-method-algo">
-<link rel=author title="Saurabh Anand" href="mailto:saurabhanandiit@gmail.com">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/Blob.js"></script>
-<div id="log"></div>
-<script>
-test_blob(function() {
-  var blobTemp = new Blob(["PASS"]);
-  return blobTemp.slice();
-}, {
-  expected: "PASS",
-  type: "",
-  desc: "no-argument Blob slice"
-});
-
-test(function() {
-  var blob1, blob2;
-
-  test_blob(function() {
-    return blob1 = new Blob(["squiggle"]);
-  }, {
-    expected: "squiggle",
-    type: "",
-    desc: "blob1."
-  });
-
-  test_blob(function() {
-    return blob2 = new Blob(["steak"], {type: "content/type"});
-  }, {
-    expected: "steak",
-    type: "content/type",
-    desc: "blob2."
-  });
-
-  test_blob(function() {
-    return new Blob().slice(0,0,null);
-  }, {
-    expected: "",
-    type: "null",
-    desc: "null type Blob slice"
-  });
-
-  test_blob(function() {
-    return new Blob().slice(0,0,undefined);
-  }, {
-    expected: "",
-    type: "",
-    desc: "undefined type Blob slice"
-  });
-
-  test_blob(function() {
-    return new Blob().slice(0,0);
-  }, {
-    expected: "",
-    type: "",
-    desc: "no type Blob slice"
-  });
-
-  var arrayBuffer = new ArrayBuffer(16);
-  var int8View = new Int8Array(arrayBuffer);
-  for (var i = 0; i < 16; i++) {
-    int8View[i] = i + 65;
-  }
-
-  var testData = [
-    [
-      ["PASSSTRING"],
-      [{start:  -6, contents: "STRING"},
-       {start: -12, contents: "PASSSTRING"},
-       {start:   4, contents: "STRING"},
-       {start:  12, contents: ""},
-       {start: 0, end:  -6, contents: "PASS"},
-       {start: 0, end: -12, contents: ""},
-       {start: 0, end:   4, contents: "PASS"},
-       {start: 0, end:  12, contents: "PASSSTRING"},
-       {start: 7, end:   4, contents: ""}]
-    ],
-
-    // Test 3 strings
-    [
-      ["foo", "bar", "baz"],
-      [{start:  0, end:  9, contents: "foobarbaz"},
-       {start:  0, end:  3, contents: "foo"},
-       {start:  3, end:  9, contents: "barbaz"},
-       {start:  6, end:  9, contents: "baz"},
-       {start:  6, end: 12, contents: "baz"},
-       {start:  0, end:  9, contents: "foobarbaz"},
-       {start:  0, end: 11, contents: "foobarbaz"},
-       {start: 10, end: 15, contents: ""}]
-    ],
-
-    // Test string, Blob, string
-    [
-      ["foo", blob1, "baz"],
-      [{start:  0, end:  3, contents: "foo"},
-       {start:  3, end: 11, contents: "squiggle"},
-       {start:  2, end:  4, contents: "os"},
-       {start: 10, end: 12, contents: "eb"}]
-    ],
-
-    // Test blob, string, blob
-    [
-      [blob1, "foo", blob1],
-      [{start:  0, end:  8, contents: "squiggle"},
-       {start:  7, end:  9, contents: "ef"},
-       {start: 10, end: 12, contents: "os"},
-       {start:  1, end:  4, contents: "qui"},
-       {start: 12, end: 15, contents: "qui"},
-       {start: 40, end: 60, contents: ""}]
-    ],
-
-    // Test blobs all the way down
-    [
-      [blob2, blob1, blob2],
-      [{start: 0,  end:  5, contents: "steak"},
-       {start: 5,  end: 13, contents: "squiggle"},
-       {start: 13, end: 18, contents: "steak"},
-       {start:  1, end:  3, contents: "te"},
-       {start:  6, end: 10, contents: "quig"}]
-    ],
-
-    // Test an ArrayBufferView
-    [
-      [int8View, blob1, "foo"],
-      [{start:  0, end:  8, contents: "ABCDEFGH"},
-       {start:  8, end: 18, contents: "IJKLMNOPsq"},
-       {start: 17, end: 20, contents: "qui"},
-       {start:  4, end: 12, contents: "EFGHIJKL"}]
-    ],
-
-    // Test a partial ArrayBufferView
-    [
-      [new Uint8Array(arrayBuffer, 3, 5), blob1, "foo"],
-      [{start:  0, end:  8, contents: "DEFGHsqu"},
-       {start:  8, end: 18, contents: "igglefoo"},
-       {start:  4, end: 12, contents: "Hsquiggl"}]
-    ],
-
-    // Test type coercion of a number
-    [
-      [3, int8View, "foo"],
-      [{start:  0, end:  8, contents: "3ABCDEFG"},
-       {start:  8, end: 18, contents: "HIJKLMNOPf"},
-       {start: 17, end: 21, contents: "foo"},
-       {start:  4, end: 12, contents: "DEFGHIJK"}]
-    ],
-
-    [
-      [(new Uint8Array([0, 255, 0])).buffer,
-       new Blob(['abcd']),
-       'efgh',
-       'ijklmnopqrstuvwxyz'],
-      [{start:  1, end:  4, contents: "\uFFFD\u0000a"},
-       {start:  4, end:  8, contents: "bcde"},
-       {start:  8, end: 12, contents: "fghi"},
-       {start:  1, end: 12, contents: "\uFFFD\u0000abcdefghi"}]
-    ]
-  ];
-
-  testData.forEach(function(data, i) {
-    var blobs = data[0];
-    var tests = data[1];
-    tests.forEach(function(expectations, j) {
-      test(function() {
-        var blob = new Blob(blobs);
-        assert_true(blob instanceof Blob);
-        assert_false(blob instanceof File);
-
-        test_blob(function() {
-          return expectations.end === undefined
-                 ? blob.slice(expectations.start)
-                 : blob.slice(expectations.start, expectations.end);
-        }, {
-          expected: expectations.contents,
-          type: "",
-          desc: "Slicing test: slice (" + i + "," + j + ")."
-        });
-      }, "Slicing test (" + i + "," + j + ").");
-    });
-  });
-}, "Slices");
-
-var invalidTypes = [
-  "\xFF",
-  "te\x09xt/plain",
-  "te\x00xt/plain",
-  "te\x1Fxt/plain",
-  "te\x7Fxt/plain"
-];
-invalidTypes.forEach(function(type) {
-  test_blob(function() {
-    var blob = new Blob(["PASS"]);
-    return blob.slice(0, 4, type);
-  }, {
-    expected: "PASS",
-    type: "",
-    desc: "Invalid contentType (" + format_value(type) + ")"
-  });
-});
-
-var validTypes = [
-  "te(xt/plain",
-  "te)xt/plain",
-  "te<xt/plain",
-  "te>xt/plain",
-  "te@xt/plain",
-  "te,xt/plain",
-  "te;xt/plain",
-  "te:xt/plain",
-  "te\\xt/plain",
-  "te\"xt/plain",
-  "te/xt/plain",
-  "te[xt/plain",
-  "te]xt/plain",
-  "te?xt/plain",
-  "te=xt/plain",
-  "te{xt/plain",
-  "te}xt/plain",
-  "te\x20xt/plain",
-  "TEXT/PLAIN",
-  "text/plain;charset = UTF-8",
-  "text/plain;charset=UTF-8"
-];
-validTypes.forEach(function(type) {
-  test_blob(function() {
-    var blob = new Blob(["PASS"]);
-    return blob.slice(0, 4, type);
-  }, {
-    expected: "PASS",
-    type: type.toLowerCase(),
-    desc: "Valid contentType (" + format_value(type) + ")"
-  });
-});
-</script>
diff --git a/test/fixtures/wpt/FileAPI/blob/Blob-stream-byob-crash.html b/test/fixtures/wpt/FileAPI/blob/Blob-stream-byob-crash.html
new file mode 100644
index 00000000000000..5992ed1396ca90
--- /dev/null
+++ b/test/fixtures/wpt/FileAPI/blob/Blob-stream-byob-crash.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<script type="module">
+  let a = new Blob(['', '', undefined], { })
+  let b = a.stream()
+  let c = new ReadableStreamBYOBReader(b)
+  let d = new Int16Array(8)
+  await c.read(d)
+  c.releaseLock()
+  await a.text()
+  await b.cancel()
+</script>
diff --git a/test/fixtures/wpt/FileAPI/blob/Blob-stream-sync-xhr-crash.html b/test/fixtures/wpt/FileAPI/blob/Blob-stream-sync-xhr-crash.html
new file mode 100644
index 00000000000000..fe54fb615b1579
--- /dev/null
+++ b/test/fixtures/wpt/FileAPI/blob/Blob-stream-sync-xhr-crash.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<script>
+  const blob = new Blob([1, 2]);
+  const readable = blob.stream()
+  const writable = new WritableStream({}, {
+    size() {
+      let xhr = new XMLHttpRequest()
+      xhr.open("POST", "1", false)
+      xhr.send()
+    }
+  })
+  readable.pipeThrough({ readable, writable })
+</script>
diff --git a/test/fixtures/wpt/FileAPI/blob/Blob-stream.any.js b/test/fixtures/wpt/FileAPI/blob/Blob-stream.any.js
index 792b6639c35a26..87710a171a9752 100644
--- a/test/fixtures/wpt/FileAPI/blob/Blob-stream.any.js
+++ b/test/fixtures/wpt/FileAPI/blob/Blob-stream.any.js
@@ -1,24 +1,26 @@
 // META: title=Blob Stream
 // META: script=../support/Blob.js
-// META: script=../../streams/resources/test-utils.js
+// META: script=/common/gc.js
 'use strict';
 
 // Helper function that triggers garbage collection while reading a chunk
 // if perform_gc is true.
 async function read_and_gc(reader, perform_gc) {
-  const read_promise = reader.read();
-  if (perform_gc)
-    garbageCollect();
+  // Passing Uint8Array for byte streams; non-byte streams will simply ignore it
+  const read_promise = reader.read(new Uint8Array(64));
+  if (perform_gc) {
+    await garbageCollect();
+  }
   return read_promise;
 }
 
 // Takes in a ReadableStream and reads from it until it is done, returning
 // an array that contains the results of each read operation. If perform_gc
 // is true, garbage collection is triggered while reading every chunk.
-async function read_all_chunks(stream, perform_gc = false) {
+async function read_all_chunks(stream, { perform_gc = false, mode } = {}) {
   assert_true(stream instanceof ReadableStream);
   assert_true('getReader' in stream);
-  const reader = stream.getReader();
+  const reader = stream.getReader({ mode });
 
   assert_true('read' in reader);
   let read_value = await read_and_gc(reader, perform_gc);
@@ -65,8 +67,17 @@ promise_test(async() => {
   let blob = new Blob([typed_arr]);
   const stream = blob.stream();
   blob = null;
-  garbageCollect();
-  const chunks = await read_all_chunks(stream, /*perform_gc=*/true);
+  await garbageCollect();
+  const chunks = await read_all_chunks(stream, { perform_gc: true });
   assert_array_equals(chunks, input_arr);
 }, "Blob.stream() garbage collection of blob shouldn't break stream" +
       "consumption")
+
+promise_test(async () => {
+  const input_arr = [8, 241, 48, 123, 151];
+  const typed_arr = new Uint8Array(input_arr);
+  let blob = new Blob([typed_arr]);
+  const stream = blob.stream();
+  const chunks = await read_all_chunks(stream, { mode: "byob" });
+  assert_array_equals(chunks, input_arr);
+}, "Reading Blob.stream() with BYOB reader")
diff --git a/test/fixtures/wpt/FileAPI/file/File-constructor.html b/test/fixtures/wpt/FileAPI/file/File-constructor.html
deleted file mode 100644
index 3477e4ada16e92..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/File-constructor.html
+++ /dev/null
@@ -1,159 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>File constructor</title>
-<link rel=help href="http://dev.w3.org/2006/webapi/FileAPI/#dfn-file">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<div id="log"></div>
-<script>
-const to_string_obj = { toString: () => 'a string' };
-const to_string_throws = { toString: () => { throw new Error('expected'); } };
-
-test(function() {
-  assert_true("File" in window, "window should have a File property.");
-}, "File interface object exists");
-
-test(t => {
-  assert_throws_js(TypeError, () => new File(),
-                   'Bits argument is required');
-  assert_throws_js(TypeError, () => new File([]),
-                   'Name argument is required');
-}, 'Required arguments');
-
-function test_first_argument(arg1, expectedSize, testName) {
-  test(function() {
-    var file = new File(arg1, "dummy");
-    assert_true(file instanceof File);
-    assert_equals(file.name, "dummy");
-    assert_equals(file.size, expectedSize);
-    assert_equals(file.type, "");
-    // assert_false(file.isClosed); XXX: File.isClosed doesn't seem to be implemented
-    assert_not_equals(file.lastModified, "");
-  }, testName);
-}
-
-test_first_argument([], 0, "empty fileBits");
-test_first_argument(["bits"], 4, "DOMString fileBits");
-test_first_argument(["𝓽𝓮𝔁𝓽"], 16, "Unicode DOMString fileBits");
-test_first_argument([new String('string object')], 13, "String object fileBits");
-test_first_argument([new Blob()], 0, "Empty Blob fileBits");
-test_first_argument([new Blob(["bits"])], 4, "Blob fileBits");
-test_first_argument([new File([], 'world.txt')], 0, "Empty File fileBits");
-test_first_argument([new File(["bits"], 'world.txt')], 4, "File fileBits");
-test_first_argument([new ArrayBuffer(8)], 8, "ArrayBuffer fileBits");
-test_first_argument([new Uint8Array([0x50, 0x41, 0x53, 0x53])], 4, "Typed array fileBits");
-test_first_argument(["bits", new Blob(["bits"]), new Blob(), new Uint8Array([0x50, 0x41]),
-                     new Uint16Array([0x5353]), new Uint32Array([0x53534150])], 16, "Various fileBits");
-test_first_argument([12], 2, "Number in fileBits");
-test_first_argument([[1,2,3]], 5, "Array in fileBits");
-test_first_argument([{}], 15, "Object in fileBits"); // "[object Object]"
-test_first_argument([document.body], 24, "HTMLBodyElement in fileBits"); // "[object HTMLBodyElement]"
-test_first_argument([to_string_obj], 8, "Object with toString in fileBits");
-test_first_argument({[Symbol.iterator]() {
-  let i = 0;
-  return {next: () => [
-    {done:false, value:'ab'},
-    {done:false, value:'cde'},
-    {done:true}
-  ][i++]};
-}}, 5, 'Custom @@iterator');
-
-[
-  'hello',
-  0,
-  null
-].forEach(arg => {
-  test(t => {
-    assert_throws_js(TypeError, () => new File(arg, 'world.html'),
-                     'Constructor should throw for invalid bits argument');
-  }, `Invalid bits argument: ${JSON.stringify(arg)}`);
-});
-
-test(t => {
-  assert_throws_js(Error, () => new File([to_string_throws], 'name.txt'),
-                   'Constructor should propagate exceptions');
-}, 'Bits argument: object that throws');
-
-
-function test_second_argument(arg2, expectedFileName, testName) {
-  test(function() {
-    var file = new File(["bits"], arg2);
-    assert_true(file instanceof File);
-    assert_equals(file.name, expectedFileName);
-  }, testName);
-}
-
-test_second_argument("dummy", "dummy", "Using fileName");
-test_second_argument("dummy/foo", "dummy/foo",
-                     "No replacement when using special character in fileName");
-test_second_argument(null, "null", "Using null fileName");
-test_second_argument(1, "1", "Using number fileName");
-test_second_argument('', '', "Using empty string fileName");
-test_second_argument(document.body, '[object HTMLBodyElement]', "Using object fileName");
-
-// testing the third argument
-[
-  {type: 'text/plain', expected: 'text/plain'},
-  {type: 'text/plain;charset=UTF-8', expected: 'text/plain;charset=utf-8'},
-  {type: 'TEXT/PLAIN', expected: 'text/plain'},
-  {type: '𝓽𝓮𝔁𝓽/𝔭𝔩𝔞𝔦𝔫', expected: ''},
-  {type: 'ascii/nonprintable\u001F', expected: ''},
-  {type: 'ascii/nonprintable\u007F', expected: ''},
-  {type: 'nonascii\u00EE', expected: ''},
-  {type: 'nonascii\u1234', expected: ''},
-  {type: 'nonparsable', expected: 'nonparsable'}
-].forEach(testCase => {
-  test(t => {
-    var file = new File(["bits"], "dummy", { type: testCase.type});
-    assert_true(file instanceof File);
-    assert_equals(file.type, testCase.expected);
-  }, `Using type in File constructor: ${testCase.type}`);
-});
-test(function() {
-  var file = new File(["bits"], "dummy", { lastModified: 42 });
-  assert_true(file instanceof File);
-  assert_equals(file.lastModified, 42);
-}, "Using lastModified");
-test(function() {
-  var file = new File(["bits"], "dummy", { name: "foo" });
-  assert_true(file instanceof File);
-  assert_equals(file.name, "dummy");
-}, "Misusing name");
-test(function() {
-  var file = new File(["bits"], "dummy", { unknownKey: "value" });
-  assert_true(file instanceof File);
-  assert_equals(file.name, "dummy");
-}, "Unknown properties are ignored");
-
-[
-  123,
-  123.4,
-  true,
-  'abc'
-].forEach(arg => {
-  test(t => {
-    assert_throws_js(TypeError, () => new File(['bits'], 'name.txt', arg),
-                     'Constructor should throw for invalid property bag type');
-  }, `Invalid property bag: ${JSON.stringify(arg)}`);
-});
-
-[
-  null,
-  undefined,
-  [1,2,3],
-  /regex/,
-  function() {}
-].forEach(arg => {
-  test(t => {
-    assert_equals(new File(['bits'], 'name.txt', arg).size, 4,
-                  'Constructor should accept object-ish property bag type');
-  }, `Unusual but valid property bag: ${arg}`);
-});
-
-test(t => {
-  assert_throws_js(Error,
-                   () => new File(['bits'], 'name.txt', {type: to_string_throws}),
-                   'Constructor should propagate exceptions');
-}, 'Property bag propagates exceptions');
-
-</script>
diff --git a/test/fixtures/wpt/FileAPI/file/send-file-form-controls.tentative.html b/test/fixtures/wpt/FileAPI/file/send-file-form-controls.tentative.html
deleted file mode 100644
index d11f4a860931b4..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/send-file-form-controls.tentative.html
+++ /dev/null
@@ -1,117 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8" />
-<title>Upload files named using controls (tentative)</title>
-<!--
-    NOTE: This test is tentative because encoding for filename
-    control characters is not yet standardized.
-  -->
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data"
-/>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/dnd.html#datatransferitemlist"
-/>
-<link rel="help" href="https://w3c.github.io/FileAPI/#file-constructor" />
-<link
-  rel="author"
-  title="Benjamin C. Wiley Sittler"
-  href="mailto:bsittler@chromium.org"
-/>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/send-file-form-helper.js"></script>
-<script>
-  "use strict";
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-NUL-[\0].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-NUL-[\0].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-BS-[\b].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-BS-[\b].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-VT-[\v].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-VT-[\v].txt",
-  });
-
-  // These have characters that undergo processing in name=,
-  // filename=, and/or value; formPostFileUploadTest postprocesses
-  // expectedEncodedBaseName for these internally.
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LF-[\n].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-LF-[\n].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LF-CR-[\n\r].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-LF-CR-[\n\r].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-CR-[\r].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-CR-[\r].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-CR-LF-[\r\n].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-CR-LF-[\r\n].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-HT-[\t].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-HT-[\t].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-FF-[\f].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-FF-[\f].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-DEL-[\x7F].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-DEL-[\x7F].txt",
-  });
-
-  // The rest should be passed through unmodified:
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-ESC-[\x1B].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-ESC-[\x1B].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-SPACE-[ ].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-SPACE-[ ].txt",
-  });
-</script>
diff --git a/test/fixtures/wpt/FileAPI/file/send-file-form-iso-2022-jp.tentative.html b/test/fixtures/wpt/FileAPI/file/send-file-form-iso-2022-jp.tentative.html
deleted file mode 100644
index 659af3bde85852..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/send-file-form-iso-2022-jp.tentative.html
+++ /dev/null
@@ -1,72 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<meta name=timeout content=long>
-<title>Upload files in ISO-2022-JP form (tentative)</title>
-<!--
-    NOTE: This test is tentative because encoding for filename
-    characters unrepresentable in the form charset is not yet
-    standardized.
-  -->
-<link rel="help"
-      href="https://github.com/whatwg/html/issues/3223">
-<link rel="help"
-      href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data">
-<link rel="help"
-      href="https://html.spec.whatwg.org/multipage/dnd.html#datatransferitemlist">
-<link rel="help"
-      href="https://w3c.github.io/FileAPI/#file-constructor">
-<link rel="author" title="Benjamin C. Wiley Sittler"
-      href="mailto:bsittler@chromium.org">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/send-file-form-helper.js"></script>
-<script>
-'use strict';
-
-formPostFileUploadTest({
-  fileNameSource: 'ASCII',
-  fileBaseName: 'file-for-upload-in-form.txt',
-  formEncoding: 'ISO-2022-JP',
-  expectedEncodedBaseName: 'file-for-upload-in-form.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'x-user-defined',
-  fileBaseName: 'file-for-upload-in-form-\uF7F0\uF793\uF783\uF7A0.txt',
-  formEncoding: 'ISO-2022-JP',
-  expectedEncodedBaseName: (
-      'file-for-upload-in-form-&#63472;&#63379;&#63363;&#63392;.txt'),
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'windows-1252',
-  fileBaseName: 'file-for-upload-in-form-☺😂.txt',
-  formEncoding: 'ISO-2022-JP',
-  expectedEncodedBaseName: (
-      'file-for-upload-in-form-&#226;&#732;&#186;&#240;&#376;&#732;&#8218;.txt'),
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'JIS X 0201 and JIS X 0208',
-  fileBaseName: 'file-for-upload-in-form-★星★.txt',
-  formEncoding: 'ISO-2022-JP',
-  expectedEncodedBaseName: 'file-for-upload-in-form-\x1B$B!z@1!z\x1B(B.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'Unicode',
-  fileBaseName: 'file-for-upload-in-form-☺😂.txt',
-  formEncoding: 'ISO-2022-JP',
-  expectedEncodedBaseName: 'file-for-upload-in-form-&#9786;&#128514;.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'Unicode',
-  fileBaseName: `file-for-upload-in-form-${kTestChars}.txt`,
-  formEncoding: 'ISO-2022-JP',
-  expectedEncodedBaseName: `file-for-upload-in-form-${
-      kTestFallbackIso2022jp
-  }.txt`,
-});
-
-</script>
diff --git a/test/fixtures/wpt/FileAPI/file/send-file-form-punctuation.tentative.html b/test/fixtures/wpt/FileAPI/file/send-file-form-punctuation.tentative.html
deleted file mode 100644
index 5c2d6d0bf1fe01..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/send-file-form-punctuation.tentative.html
+++ /dev/null
@@ -1,230 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8" />
-<title>Upload files named using punctuation (tentative)</title>
-<!--
-    NOTE: This test is tentative because encoding for filename
-    punctuation characters is not yet standardized.
-  -->
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data"
-/>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/dnd.html#datatransferitemlist"
-/>
-<link rel="help" href="https://w3c.github.io/FileAPI/#file-constructor" />
-<link
-  rel="author"
-  title="Benjamin C. Wiley Sittler"
-  href="mailto:bsittler@chromium.org"
-/>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/send-file-form-helper.js"></script>
-<script>
-  "use strict";
-
-  // These have characters that undergo processing in name=,
-  // filename=, and/or value; formPostFileUploadTest postprocesses
-  // expectedEncodedBaseName for these internally.
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-QUOTATION-MARK-[\x22].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName:
-      "file-for-upload-in-form-QUOTATION-MARK-[\x22].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: '"file-for-upload-in-form-double-quoted.txt"',
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: '"file-for-upload-in-form-double-quoted.txt"',
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-REVERSE-SOLIDUS-[\\].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName:
-      "file-for-upload-in-form-REVERSE-SOLIDUS-[\\].txt",
-  });
-
-  // The rest should be passed through unmodified:
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-EXCLAMATION-MARK-[!].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-EXCLAMATION-MARK-[!].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-DOLLAR-SIGN-[$].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-DOLLAR-SIGN-[$].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-PERCENT-SIGN-[%].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-PERCENT-SIGN-[%].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-AMPERSAND-[&].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-AMPERSAND-[&].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-APOSTROPHE-['].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-APOSTROPHE-['].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LEFT-PARENTHESIS-[(].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-LEFT-PARENTHESIS-[(].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-RIGHT-PARENTHESIS-[)].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName:
-      "file-for-upload-in-form-RIGHT-PARENTHESIS-[)].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-ASTERISK-[*].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-ASTERISK-[*].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-PLUS-SIGN-[+].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-PLUS-SIGN-[+].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-COMMA-[,].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-COMMA-[,].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-FULL-STOP-[.].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-FULL-STOP-[.].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-SOLIDUS-[/].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-SOLIDUS-[/].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-COLON-[:].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-COLON-[:].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-SEMICOLON-[;].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-SEMICOLON-[;].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-EQUALS-SIGN-[=].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-EQUALS-SIGN-[=].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-QUESTION-MARK-[?].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-QUESTION-MARK-[?].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-CIRCUMFLEX-ACCENT-[^].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName:
-      "file-for-upload-in-form-CIRCUMFLEX-ACCENT-[^].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LEFT-SQUARE-BRACKET-[[].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName:
-      "file-for-upload-in-form-LEFT-SQUARE-BRACKET-[[].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-RIGHT-SQUARE-BRACKET-[]].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName:
-      "file-for-upload-in-form-RIGHT-SQUARE-BRACKET-[]].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LEFT-CURLY-BRACKET-[{].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName:
-      "file-for-upload-in-form-LEFT-CURLY-BRACKET-[{].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-VERTICAL-LINE-[|].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-VERTICAL-LINE-[|].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-RIGHT-CURLY-BRACKET-[}].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName:
-      "file-for-upload-in-form-RIGHT-CURLY-BRACKET-[}].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-TILDE-[~].txt",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "file-for-upload-in-form-TILDE-[~].txt",
-  });
-
-  formPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "'file-for-upload-in-form-single-quoted.txt'",
-    formEncoding: "UTF-8",
-    expectedEncodedBaseName: "'file-for-upload-in-form-single-quoted.txt'",
-  });
-</script>
diff --git a/test/fixtures/wpt/FileAPI/file/send-file-form-windows-1252.tentative.html b/test/fixtures/wpt/FileAPI/file/send-file-form-windows-1252.tentative.html
deleted file mode 100644
index a2c37186b3e023..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/send-file-form-windows-1252.tentative.html
+++ /dev/null
@@ -1,69 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Upload files in Windows-1252 form (tentative)</title>
-<!--
-    NOTE: This test is tentative because encoding for filename
-    characters unrepresentable in the form charset is not yet
-    standardized.
-  -->
-<link rel="help"
-      href="https://github.com/whatwg/html/issues/3223">
-<link rel="help"
-      href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data">
-<link rel="help"
-      href="https://html.spec.whatwg.org/multipage/dnd.html#datatransferitemlist">
-<link rel="help"
-      href="https://w3c.github.io/FileAPI/#file-constructor">
-<link rel="author" title="Benjamin C. Wiley Sittler"
-      href="mailto:bsittler@chromium.org">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/send-file-form-helper.js"></script>
-<script>
-'use strict';
-
-formPostFileUploadTest({
-  fileNameSource: 'ASCII',
-  fileBaseName: 'file-for-upload-in-form.txt',
-  formEncoding: 'windows-1252',
-  expectedEncodedBaseName: 'file-for-upload-in-form.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'x-user-defined',
-  fileBaseName: 'file-for-upload-in-form-\uF7F0\uF793\uF783\uF7A0.txt',
-  formEncoding: 'windows-1252',
-  expectedEncodedBaseName: 'file-for-upload-in-form-&#63472;&#63379;&#63363;&#63392;.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'windows-1252',
-  fileBaseName: 'file-for-upload-in-form-☺😂.txt',
-  formEncoding: 'windows-1252',
-  expectedEncodedBaseName: 'file-for-upload-in-form-\xE2\x98\xBA\xF0\x9F\x98\x82.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'JIS X 0201 and JIS X 0208',
-  fileBaseName: 'file-for-upload-in-form-★星★.txt',
-  formEncoding: 'windows-1252',
-  expectedEncodedBaseName: 'file-for-upload-in-form-&#9733;&#26143;&#9733;.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'Unicode',
-  fileBaseName: 'file-for-upload-in-form-☺😂.txt',
-  formEncoding: 'windows-1252',
-  expectedEncodedBaseName: 'file-for-upload-in-form-&#9786;&#128514;.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'Unicode',
-  fileBaseName: `file-for-upload-in-form-${kTestChars}.txt`,
-  formEncoding: 'windows-1252',
-  expectedEncodedBaseName: `file-for-upload-in-form-${
-      kTestFallbackWindows1252
-  }.txt`,
-});
-
-</script>
diff --git a/test/fixtures/wpt/FileAPI/file/send-file-form-x-user-defined.tentative.html b/test/fixtures/wpt/FileAPI/file/send-file-form-x-user-defined.tentative.html
deleted file mode 100644
index 503b08a51706f7..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/send-file-form-x-user-defined.tentative.html
+++ /dev/null
@@ -1,70 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>Upload files in x-user-defined form (tentative)</title>
-<!--
-    NOTE: This test is tentative because encoding for filename
-    characters unrepresentable in the form charset is not yet
-    standardized.
-  -->
-<link rel="help"
-      href="https://github.com/whatwg/html/issues/3223">
-<link rel="help"
-      href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data">
-<link rel="help"
-      href="https://html.spec.whatwg.org/multipage/dnd.html#datatransferitemlist">
-<link rel="help"
-      href="https://w3c.github.io/FileAPI/#file-constructor">
-<link rel="author" title="Benjamin C. Wiley Sittler"
-      href="mailto:bsittler@chromium.org">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/send-file-form-helper.js"></script>
-<script>
-'use strict';
-
-formPostFileUploadTest({
-  fileNameSource: 'ASCII',
-  fileBaseName: 'file-for-upload-in-form.txt',
-  formEncoding: 'x-user-defined',
-  expectedEncodedBaseName: 'file-for-upload-in-form.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'x-user-defined',
-  fileBaseName: 'file-for-upload-in-form-\uF7F0\uF793\uF783\uF7A0.txt',
-  formEncoding: 'x-user-defined',
-  expectedEncodedBaseName: 'file-for-upload-in-form-\xF0\x93\x83\xA0.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'windows-1252',
-  fileBaseName: 'file-for-upload-in-form-☺😂.txt',
-  formEncoding: 'x-user-defined',
-  expectedEncodedBaseName: ('file-for-upload-in-form-' +
-                            '&#226;&#732;&#186;&#240;&#376;&#732;&#8218;.txt'),
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'JIS X 0201 and JIS X 0208',
-  fileBaseName: 'file-for-upload-in-form-★星★.txt',
-  formEncoding: 'x-user-defined',
-  expectedEncodedBaseName: 'file-for-upload-in-form-&#9733;&#26143;&#9733;.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'Unicode',
-  fileBaseName: 'file-for-upload-in-form-☺😂.txt',
-  formEncoding: 'x-user-defined',
-  expectedEncodedBaseName: 'file-for-upload-in-form-&#9786;&#128514;.txt',
-});
-
-formPostFileUploadTest({
-  fileNameSource: 'Unicode',
-  fileBaseName: `file-for-upload-in-form-${kTestChars}.txt`,
-  formEncoding: 'x-user-defined',
-  expectedEncodedBaseName: `file-for-upload-in-form-${
-      kTestFallbackXUserDefined
-  }.txt`,
-});
-
-</script>
diff --git a/test/fixtures/wpt/FileAPI/file/send-file-formdata-controls.tentative.html b/test/fixtures/wpt/FileAPI/file/send-file-formdata-controls.tentative.html
deleted file mode 100644
index 4259741b63ef31..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/send-file-formdata-controls.tentative.html
+++ /dev/null
@@ -1,93 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8" />
-<title>FormData: Upload files named using controls (tentative)</title>
-<!--
-    NOTE: This test is tentative because encoding for filename
-    control characters is not yet standardized.
-  -->
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data"
-/>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/dnd.html#datatransferitemlist"
-/>
-<link rel="help" href="https://w3c.github.io/FileAPI/#file-constructor" />
-<link
-  rel="author"
-  title="Benjamin C. Wiley Sittler"
-  href="mailto:bsittler@chromium.org"
-/>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/send-file-formdata-helper.js"></script>
-<script>
-  "use strict";
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-NUL-[\0].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-BS-[\b].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-VT-[\v].txt",
-  });
-
-  // These have characters that undergo processing in name=,
-  // filename=, and/or value; formDataPostFileUploadTest postprocesses
-  // expectedEncodedBaseName for these internally.
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LF-[\n].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LF-CR-[\n\r].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-CR-[\r].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-CR-LF-[\r\n].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-HT-[\t].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-FF-[\f].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-DEL-[\x7F].txt",
-  });
-
-  // The rest should be passed through unmodified:
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-ESC-[\x1B].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-SPACE-[ ].txt",
-  });
-</script>
diff --git a/test/fixtures/wpt/FileAPI/file/send-file-formdata-punctuation.tentative.html b/test/fixtures/wpt/FileAPI/file/send-file-formdata-punctuation.tentative.html
deleted file mode 100644
index d8e84e9d978094..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/send-file-formdata-punctuation.tentative.html
+++ /dev/null
@@ -1,168 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8" />
-<title>FormData: Upload files named using punctuation (tentative)</title>
-<!--
-    NOTE: This test is tentative because encoding for filename
-    punctuation characters is not yet standardized.
-  -->
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data"
-/>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/dnd.html#datatransferitemlist"
-/>
-<link rel="help" href="https://w3c.github.io/FileAPI/#file-constructor" />
-<link
-  rel="author"
-  title="Benjamin C. Wiley Sittler"
-  href="mailto:bsittler@chromium.org"
-/>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/send-file-formdata-helper.js"></script>
-<script>
-  "use strict";
-
-  // These have characters that undergo processing in name=,
-  // filename=, and/or value; formDataPostFileUploadTest postprocesses
-  // expectedEncodedBaseName for these internally.
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-QUOTATION-MARK-[\x22].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: '"file-for-upload-in-form-double-quoted.txt"',
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-REVERSE-SOLIDUS-[\\].txt",
-  });
-
-  // The rest should be passed through unmodified:
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-EXCLAMATION-MARK-[!].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-DOLLAR-SIGN-[$].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-PERCENT-SIGN-[%].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-AMPERSAND-[&].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-APOSTROPHE-['].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LEFT-PARENTHESIS-[(].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-RIGHT-PARENTHESIS-[)].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-ASTERISK-[*].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-PLUS-SIGN-[+].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-COMMA-[,].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-FULL-STOP-[.].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-SOLIDUS-[/].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-COLON-[:].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-SEMICOLON-[;].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-EQUALS-SIGN-[=].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-QUESTION-MARK-[?].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-CIRCUMFLEX-ACCENT-[^].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LEFT-SQUARE-BRACKET-[[].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-RIGHT-SQUARE-BRACKET-[]].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-LEFT-CURLY-BRACKET-[{].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-VERTICAL-LINE-[|].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-RIGHT-CURLY-BRACKET-[}].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form-TILDE-[~].txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "'file-for-upload-in-form-single-quoted.txt'",
-  });
-</script>
diff --git a/test/fixtures/wpt/FileAPI/file/send-file-formdata-utf-8.html b/test/fixtures/wpt/FileAPI/file/send-file-formdata-utf-8.html
deleted file mode 100644
index 7a7f6cefe776b9..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/send-file-formdata-utf-8.html
+++ /dev/null
@@ -1,53 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8" />
-<title>FormData: Upload files in UTF-8 fetch()</title>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data"
-/>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/dnd.html#datatransferitemlist"
-/>
-<link rel="help" href="https://w3c.github.io/FileAPI/#file-constructor" />
-<link
-  rel="author"
-  title="Benjamin C. Wiley Sittler"
-  href="mailto:bsittler@chromium.org"
-/>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/send-file-formdata-helper.js"></script>
-<script>
-  "use strict";
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form.txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "x-user-defined",
-    fileBaseName: "file-for-upload-in-form-\uF7F0\uF793\uF783\uF7A0.txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "windows-1252",
-    fileBaseName: "file-for-upload-in-form-☺😂.txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "JIS X 0201 and JIS X 0208",
-    fileBaseName: "file-for-upload-in-form-★星★.txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "Unicode",
-    fileBaseName: "file-for-upload-in-form-☺😂.txt",
-  });
-
-  formDataPostFileUploadTest({
-    fileNameSource: "Unicode",
-    fileBaseName: `file-for-upload-in-form-${kTestChars}.txt`,
-  });
-</script>
diff --git a/test/fixtures/wpt/FileAPI/file/send-file-formdata.html b/test/fixtures/wpt/FileAPI/file/send-file-formdata.html
deleted file mode 100644
index 77e048e54741c0..00000000000000
--- a/test/fixtures/wpt/FileAPI/file/send-file-formdata.html
+++ /dev/null
@@ -1,28 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8" />
-<title>FormData: Upload ASCII-named file in UTF-8 form</title>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#multipart-form-data"
-/>
-<link
-  rel="help"
-  href="https://html.spec.whatwg.org/multipage/dnd.html#datatransferitemlist"
-/>
-<link rel="help" href="https://w3c.github.io/FileAPI/#file-constructor" />
-<link
-  rel="author"
-  title="Benjamin C. Wiley Sittler"
-  href="mailto:bsittler@chromium.org"
-/>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../support/send-file-formdata-helper.js"></script>
-<script>
-  "use strict";
-
-  formDataPostFileUploadTest({
-    fileNameSource: "ASCII",
-    fileBaseName: "file-for-upload-in-form.txt",
-  });
-</script>
diff --git a/test/fixtures/wpt/FileAPI/fileReader.any.js b/test/fixtures/wpt/FileAPI/fileReader.any.js
new file mode 100644
index 00000000000000..2876dcb4ce314e
--- /dev/null
+++ b/test/fixtures/wpt/FileAPI/fileReader.any.js
@@ -0,0 +1,59 @@
+// META: title=FileReader States
+
+'use strict';
+
+test(function () {
+  assert_true(
+    "FileReader" in globalThis,
+    "globalThis should have a FileReader property.",
+  );
+}, "FileReader interface object");
+
+test(function () {
+  var fileReader = new FileReader();
+  assert_true(fileReader instanceof FileReader);
+}, "no-argument FileReader constructor");
+
+var t_abort = async_test("FileReader States -- abort");
+t_abort.step(function () {
+  var fileReader = new FileReader();
+  assert_equals(fileReader.readyState, 0);
+  assert_equals(fileReader.readyState, FileReader.EMPTY);
+
+  var blob = new Blob();
+  fileReader.readAsArrayBuffer(blob);
+  assert_equals(fileReader.readyState, 1);
+  assert_equals(fileReader.readyState, FileReader.LOADING);
+
+  fileReader.onabort = this.step_func(function (e) {
+    assert_equals(fileReader.readyState, 2);
+    assert_equals(fileReader.readyState, FileReader.DONE);
+    t_abort.done();
+  });
+  fileReader.abort();
+  fileReader.onabort = this.unreached_func("abort event should fire sync");
+});
+
+var t_event = async_test("FileReader States -- events");
+t_event.step(function () {
+  var fileReader = new FileReader();
+
+  var blob = new Blob();
+  fileReader.readAsArrayBuffer(blob);
+
+  fileReader.onloadstart = this.step_func(function (e) {
+    assert_equals(fileReader.readyState, 1);
+    assert_equals(fileReader.readyState, FileReader.LOADING);
+  });
+
+  fileReader.onprogress = this.step_func(function (e) {
+    assert_equals(fileReader.readyState, 1);
+    assert_equals(fileReader.readyState, FileReader.LOADING);
+  });
+
+  fileReader.onloadend = this.step_func(function (e) {
+    assert_equals(fileReader.readyState, 2);
+    assert_equals(fileReader.readyState, FileReader.DONE);
+    t_event.done();
+  });
+});
diff --git a/test/fixtures/wpt/FileAPI/fileReader.html b/test/fixtures/wpt/FileAPI/fileReader.html
deleted file mode 100644
index b767e22d4a66eb..00000000000000
--- a/test/fixtures/wpt/FileAPI/fileReader.html
+++ /dev/null
@@ -1,67 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-      <title>FileReader States</title>
-      <link rel=help href="http://dev.w3.org/2006/webapi/FileAPI/#dfn-filereader">
-      <link rel=author title="Lenient" href="mailto:lenient315@gmail.com">
-      <script src="/resources/testharness.js"></script>
-      <script src="/resources/testharnessreport.js"></script>
-  </head>
-  <body>
-    <div id="log"></div>
-    <script>
-        test(function() {
-             assert_true("FileReader" in window, "window should have a FileReader property.");
-        }, "FileReader interface object");
-
-        test(function(){
-            var fileReader = new FileReader();
-            assert_true(fileReader instanceof FileReader);
-        }, "no-argument FileReader constructor");
-
-        var t_abort = async_test("FileReader States -- abort");
-        t_abort.step(function(){
-            var fileReader = new FileReader();
-            assert_equals(fileReader.readyState, 0);
-            assert_equals(fileReader.readyState, FileReader.EMPTY);
-
-            var blob = new Blob();
-            fileReader.readAsArrayBuffer(blob);
-            assert_equals(fileReader.readyState, 1);
-            assert_equals(fileReader.readyState, FileReader.LOADING);
-
-            fileReader.onabort = this.step_func(function(e) {
-                assert_equals(fileReader.readyState, 2);
-                assert_equals(fileReader.readyState, FileReader.DONE);
-                t_abort.done();
-            });
-            fileReader.abort();
-            fileReader.onabort = this.unreached_func("abort event should fire sync")
-        });
-
-        var t_event = async_test("FileReader States -- events");
-        t_event.step(function(){
-            var fileReader = new FileReader();
-
-            var blob = new Blob();
-            fileReader.readAsArrayBuffer(blob);
-
-            fileReader.onloadstart = this.step_func(function(e) {
-                assert_equals(fileReader.readyState, 1);
-                assert_equals(fileReader.readyState, FileReader.LOADING);
-            });
-
-            fileReader.onprogress = this.step_func(function(e) {
-                assert_equals(fileReader.readyState, 1);
-                assert_equals(fileReader.readyState, FileReader.LOADING);
-            });
-
-            fileReader.onloadend = this.step_func(function(e) {
-                assert_equals(fileReader.readyState, 2);
-                assert_equals(fileReader.readyState, FileReader.DONE);
-                t_event.done();
-            });
-        });
-    </script>
-  </body>
-</html>
diff --git a/test/fixtures/wpt/FileAPI/idlharness.any.js b/test/fixtures/wpt/FileAPI/idlharness.any.js
new file mode 100644
index 00000000000000..1744242b9f3ff1
--- /dev/null
+++ b/test/fixtures/wpt/FileAPI/idlharness.any.js
@@ -0,0 +1,19 @@
+// META: script=/resources/WebIDLParser.js
+// META: script=/resources/idlharness.js
+// META: timeout=long
+
+'use strict';
+
+// https://w3c.github.io/FileAPI/
+
+idl_test(
+  ['FileAPI'],
+  ['dom', 'html', 'url'],
+  idl_array => {
+    idl_array.add_objects({
+      Blob: ['new Blob(["TEST"])'],
+      File: ['new File(["myFileBits"], "myFileName")'],
+      FileReader: ['new FileReader()']
+    });
+  }
+);
diff --git a/test/fixtures/wpt/FileAPI/idlharness.html b/test/fixtures/wpt/FileAPI/idlharness.html
index 5e0a43f80df3f8..45e8684f0027b2 100644
--- a/test/fixtures/wpt/FileAPI/idlharness.html
+++ b/test/fixtures/wpt/FileAPI/idlharness.html
@@ -2,7 +2,7 @@
 <html>
   <head>
     <meta charset="utf-8">
-    <title>File API automated IDL tests</title>
+    <title>File API automated IDL tests (requiring dom)</title>
     <link rel="author" title="Intel" href="http://www.intel.com">
     <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#conformance">
     <script src="/resources/testharness.js"></script>
@@ -27,10 +27,7 @@ <h1>File API automated IDL tests</h1>
         ['dom', 'html', 'url'],
         idl_array => {
           idl_array.add_objects({
-            Blob: ['new Blob(["TEST"])'],
-            File: ['new File(["myFileBits"], "myFileName")'],
-            FileList: ['document.querySelector("#fileChooser").files'],
-            FileReader: ['new FileReader()']
+            FileList: ['document.querySelector("#fileChooser").files']
           });
         }
       );
diff --git a/test/fixtures/wpt/FileAPI/idlharness.worker.js b/test/fixtures/wpt/FileAPI/idlharness.worker.js
index 786b7e4199fb45..002aaed40a562e 100644
--- a/test/fixtures/wpt/FileAPI/idlharness.worker.js
+++ b/test/fixtures/wpt/FileAPI/idlharness.worker.js
@@ -10,9 +10,6 @@ idl_test(
   ['dom', 'html', 'url'],
   idl_array => {
     idl_array.add_objects({
-      Blob: ['new Blob(["TEST"])'],
-      File: ['new File(["myFileBits"], "myFileName")'],
-      FileReader: ['new FileReader()'],
       FileReaderSync: ['new FileReaderSync()']
     });
   }
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/Determining-Encoding.html b/test/fixtures/wpt/FileAPI/reading-data-section/Determining-Encoding.any.js
similarity index 86%
rename from test/fixtures/wpt/FileAPI/reading-data-section/Determining-Encoding.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/Determining-Encoding.any.js
index d65ae9db18a1ff..5b69f7ed9821ac 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/Determining-Encoding.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/Determining-Encoding.any.js
@@ -1,13 +1,5 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>FileAPI Test: Blob Determining Encoding</title>
-<link ref="author" title="march1993" href="mailto:march511@gmail.com">
-<link rel=help href="http://dev.w3.org/2006/webapi/FileAPI/#enctype">
-<link rel=help href="http://encoding.spec.whatwg.org/#decode">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<div id="log"></div>
-<script>
+// META: title=FileAPI Test: Blob Determining Encoding
+
 var t = async_test("Blob Determing Encoding with encoding argument");
 t.step(function() {
     // string 'hello'
@@ -87,5 +79,3 @@
 
     reader.readAsText(blob);
 });
-
-</script>
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/FileReader-event-handler-attributes.html b/test/fixtures/wpt/FileAPI/reading-data-section/FileReader-event-handler-attributes.any.js
similarity index 60%
rename from test/fixtures/wpt/FileAPI/reading-data-section/FileReader-event-handler-attributes.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/FileReader-event-handler-attributes.any.js
index 86657b5711aff1..fc71c6434812e2 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/FileReader-event-handler-attributes.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/FileReader-event-handler-attributes.any.js
@@ -1,10 +1,5 @@
-<!doctype html>
-<meta charset="utf-8">
-<title>FileReader event handler attributes</title>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<div id=log></div>
-<script>
+// META: title=FileReader event handler attributes
+
 var attributes = [
   "onloadstart",
   "onprogress",
@@ -20,4 +15,3 @@
                   "event handler attribute should initially be null");
   }, "FileReader." + a + ": initial value");
 });
-</script>
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/FileReader-multiple-reads.html b/test/fixtures/wpt/FileAPI/reading-data-section/FileReader-multiple-reads.any.js
similarity index 89%
rename from test/fixtures/wpt/FileAPI/reading-data-section/FileReader-multiple-reads.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/FileReader-multiple-reads.any.js
index e7279fe4bd445e..4b19c69b425188 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/FileReader-multiple-reads.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/FileReader-multiple-reads.any.js
@@ -1,11 +1,5 @@
-<!DOCTYPE html>
-<title>FileReader: starting new reads while one is in progress</title>
-<link rel="author" title="Yinkan Li" href="mailto:liyinkan.biz@gmail.com">
-<link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#MultipleReads">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<div id="log"></div>
-<script>
+// META: title=FileReader: starting new reads while one is in progress
+
 test(function() {
   var blob_1 = new Blob(['TEST000000001'])
   var blob_2 = new Blob(['TEST000000002'])
@@ -85,5 +79,3 @@
   });
   reader.readAsText(blob_1);
 }, 'test abort and restart in onloadstart event for readAsText');
-
-</script>
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_abort.html b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_abort.any.js
similarity index 77%
rename from test/fixtures/wpt/FileAPI/reading-data-section/filereader_abort.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/filereader_abort.any.js
index 940a775d35bf42..c778ae55bb573b 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_abort.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_abort.any.js
@@ -1,17 +1,5 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>FileAPI Test: filereader_abort</title>
-    <link rel="author" title="Intel" href="http://www.intel.com">
-    <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#abort">
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-  </head>
-  <body>
-    <div id="log"></div>
+// META: title=FileAPI Test: filereader_abort
 
-    <script>
     test(function() {
       var readerNoRead = new FileReader();
       readerNoRead.abort();
@@ -48,6 +36,3 @@
               assert_equals(readerAbort.readyState, readerAbort.DONE);
             });
       }, "Aborting after read");
-    </script>
-  </body>
-</html>
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_error.html b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_error.any.js
similarity index 51%
rename from test/fixtures/wpt/FileAPI/reading-data-section/filereader_error.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/filereader_error.any.js
index cf4524825b80ca..9845962090132e 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_error.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_error.any.js
@@ -1,18 +1,5 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>FileAPI Test: filereader_error</title>
-    <link rel="author" title="Intel" href="http://www.intel.com">
-    <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#dfn-domerror">
-    <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#abort">
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-  </head>
-  <body>
-    <div id="log"></div>
+// META: title=FileAPI Test: filereader_error
 
-    <script>
     async_test(function() {
       var blob = new Blob(["TEST THE ERROR ATTRIBUTE AND ERROR EVENT"]);
       var reader = new FileReader();
@@ -30,6 +17,3 @@
       reader.readAsText(blob);
       reader.abort();
     });
-    </script>
-  </body>
-</html>
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsArrayBuffer.html b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsArrayBuffer.any.js
similarity index 60%
rename from test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsArrayBuffer.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsArrayBuffer.any.js
index 31001a51a0727f..d06e3170782b7c 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsArrayBuffer.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsArrayBuffer.any.js
@@ -1,17 +1,5 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>FileAPI Test: filereader_readAsArrayBuffer</title>
-    <link rel="author" title="Intel" href="http://www.intel.com">
-    <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#readAsArrayBuffer">
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-  </head>
-  <body>
-    <div id="log"></div>
+// META: title=FileAPI Test: filereader_readAsArrayBuffer
 
-    <script>
     async_test(function() {
       var blob = new Blob(["TEST"]);
       var reader = new FileReader();
@@ -33,6 +21,3 @@
 
       reader.readAsArrayBuffer(blob);
     });
-    </script>
-  </body>
-</html>
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsBinaryString.html b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsBinaryString.any.js
similarity index 64%
rename from test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsBinaryString.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsBinaryString.any.js
index b550e4d0a96dc7..e69ff15e75b590 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsBinaryString.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsBinaryString.any.js
@@ -1,11 +1,4 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>FileAPI Test: filereader_readAsBinaryString</title>
-<link rel="author" title="Intel" href="http://www.intel.com">
-<link rel="help" href="https://w3c.github.io/FileAPI/#readAsBinaryString">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script>
+// META: title=FileAPI Test: filereader_readAsBinaryString
 
 async_test(t => {
   const blob = new Blob(["σ"]);
@@ -28,5 +21,3 @@
 
   reader.readAsBinaryString(blob);
 });
-
-</script>
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsDataURL.html b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsDataURL.any.js
similarity index 74%
rename from test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsDataURL.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsDataURL.any.js
index 5bc39499a229d1..d6812121295bee 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsDataURL.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsDataURL.any.js
@@ -1,12 +1,5 @@
-<!doctype html>
-<meta charset="utf-8">
-<title>FileAPI Test: FileReader.readAsDataURL</title>
-<link rel="author" title="Intel" href="http://www.intel.com">
-<link rel="help" href="https://w3c.github.io/FileAPI/#readAsDataURL">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
+// META: title=FileAPI Test: FileReader.readAsDataURL
 
-<script>
 async_test(function(testCase) {
   var blob = new Blob(["TEST"]);
   var reader = new FileReader();
@@ -46,6 +39,4 @@
     testCase.done();
   });
   reader.readAsDataURL(blob);
-}, 'readAsDataURL result for Blob with unspecified MIME type');
-
-</script>
\ No newline at end of file
+}, 'readAsDataURL result for Blob with unspecified MIME type');
\ No newline at end of file
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsText.html b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsText.any.js
similarity index 73%
rename from test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsText.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsText.any.js
index 7d639d0111473b..4d0fa113931d34 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsText.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readAsText.any.js
@@ -1,17 +1,5 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>FileAPI Test: filereader_readAsText</title>
-    <link rel="author" title="Intel" href="http://www.intel.com">
-    <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#readAsDataText">
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-  </head>
-  <body>
-    <div id="log"></div>
+// META: title=FileAPI Test: filereader_readAsText
 
-    <script>
     async_test(function() {
       var blob = new Blob(["TEST"]);
       var reader = new FileReader();
@@ -46,6 +34,3 @@
       });
       reader_UTF16.readAsText(blob, "UTF-16");
     }, "readAsText should correctly read UTF-16.");
-    </script>
-  </body>
-</html>
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readystate.html b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readystate.any.js
similarity index 51%
rename from test/fixtures/wpt/FileAPI/reading-data-section/filereader_readystate.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/filereader_readystate.any.js
index 1586b8995059f7..3cb36ab999653b 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readystate.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_readystate.any.js
@@ -1,17 +1,5 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>FileAPI Test: filereader_readystate</title>
-    <link rel="author" title="Intel" href="http://www.intel.com">
-    <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#blobreader-state">
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-  </head>
-  <body>
-    <div id="log"></div>
+// META: title=FileAPI Test: filereader_readystate
 
-    <script>
     async_test(function() {
       var blob = new Blob(["THIS TEST THE READYSTATE WHEN READ BLOB"]);
       var reader = new FileReader();
@@ -29,6 +17,3 @@
 
       reader.readAsDataURL(blob);
     });
-    </script>
-  </body>
-</html>
diff --git a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_result.html b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_result.any.js
similarity index 87%
rename from test/fixtures/wpt/FileAPI/reading-data-section/filereader_result.html
rename to test/fixtures/wpt/FileAPI/reading-data-section/filereader_result.any.js
index b80322ed424f83..28c068bb349c3d 100644
--- a/test/fixtures/wpt/FileAPI/reading-data-section/filereader_result.html
+++ b/test/fixtures/wpt/FileAPI/reading-data-section/filereader_result.any.js
@@ -1,17 +1,5 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>FileAPI Test: filereader_result</title>
-    <link rel="author" title="Intel" href="http://www.intel.com">
-    <link rel="help" href="http://dev.w3.org/2006/webapi/FileAPI/#filedata-attr">
-    <script src="/resources/testharness.js"></script>
-    <script src="/resources/testharnessreport.js"></script>
-  </head>
-  <body>
-    <div id="log"></div>
-
-    <script>
+// META: title=FileAPI Test: filereader_result
+
     var blob, blob2;
     setup(function() {
       blob = new Blob(["This test the result attribute"]);
@@ -92,6 +80,3 @@
         }, 'result is null during "' + event + '" event for ' + method);
       }
     }
-    </script>
-  </body>
-</html>
diff --git a/test/fixtures/wpt/FileAPI/support/Blob.js b/test/fixtures/wpt/FileAPI/support/Blob.js
index 04069acd3ccbe7..2c249746858918 100644
--- a/test/fixtures/wpt/FileAPI/support/Blob.js
+++ b/test/fixtures/wpt/FileAPI/support/Blob.js
@@ -1,6 +1,6 @@
 'use strict'
 
-function test_blob(fn, expectations) {
+self.test_blob = (fn, expectations) => {
   var expected = expectations.expected,
       type = expectations.type,
       desc = expectations.desc;
@@ -24,7 +24,7 @@ function test_blob(fn, expectations) {
   });
 }
 
-function test_blob_binary(fn, expectations) {
+self.test_blob_binary = (fn, expectations) => {
   var expected = expectations.expected,
       type = expectations.type,
       desc = expectations.desc;
diff --git a/test/fixtures/wpt/FileAPI/support/empty-document.html b/test/fixtures/wpt/FileAPI/support/empty-document.html
new file mode 100644
index 00000000000000..b9cd130a07f77e
--- /dev/null
+++ b/test/fixtures/wpt/FileAPI/support/empty-document.html
@@ -0,0 +1,3 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<body>
diff --git a/test/fixtures/wpt/FileAPI/support/send-file-formdata-helper.js b/test/fixtures/wpt/FileAPI/support/send-file-formdata-helper.js
index 53572ef36c8d1b..53c8cca7e09b8e 100644
--- a/test/fixtures/wpt/FileAPI/support/send-file-formdata-helper.js
+++ b/test/fixtures/wpt/FileAPI/support/send-file-formdata-helper.js
@@ -70,19 +70,21 @@ const formDataPostFileUploadTest = ({
       }`,
     );
 
-    const asName = fileBaseName.replace(/[\r\n"]/g, encodeURIComponent);
+    const asValue = fileBaseName.replace(/\r\n?|\n/g, "\r\n");
+    const asName = asValue.replace(/[\r\n"]/g, encodeURIComponent);
+    const asFilename = fileBaseName.replace(/[\r\n"]/g, encodeURIComponent);
     const expectedText = [
       boundary,
       'Content-Disposition: form-data; name="filename"',
       "",
-      fileBaseName,
+      asValue,
       boundary,
       `Content-Disposition: form-data; name="${asName}"`,
       "",
       "filename",
       boundary,
       `Content-Disposition: form-data; name="file"; ` +
-      `filename="${asName}"`,
+      `filename="${asFilename}"`,
       "Content-Type: text/plain",
       "",
       kTestChars,
diff --git a/test/fixtures/wpt/FileAPI/url/cross-global-revoke.sub.html b/test/fixtures/wpt/FileAPI/url/cross-global-revoke.sub.html
index 21b8c5bb1986d5..ce9d680709e058 100644
--- a/test/fixtures/wpt/FileAPI/url/cross-global-revoke.sub.html
+++ b/test/fixtures/wpt/FileAPI/url/cross-global-revoke.sub.html
@@ -2,6 +2,7 @@
 <meta charset="utf-8">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
 <body>
 <script>
 async_test(t => {
@@ -42,7 +43,7 @@
   const url = URL.createObjectURL(blob);
   const frame = document.createElement('iframe');
   frame.setAttribute('style', 'display:none;');
-  frame.src = '//{{domains[www1]}}:{{location[port]}}/FileAPI/url/resources/revoke-helper.html';
+  frame.src = get_host_info().HTTP_REMOTE_ORIGIN + '/FileAPI/url/resources/revoke-helper.html';
   document.body.appendChild(frame);
 
   frame.onload = t.step_func(e => {
@@ -58,4 +59,4 @@
   }));
 }, 'It is not possible to revoke cross-origin blob URLs.');
 
-</script>
\ No newline at end of file
+</script>
diff --git a/test/fixtures/wpt/FileAPI/url/url-format.any.js b/test/fixtures/wpt/FileAPI/url/url-format.any.js
index 33732fa61fc3dd..69c51113e6b99b 100644
--- a/test/fixtures/wpt/FileAPI/url/url-format.any.js
+++ b/test/fixtures/wpt/FileAPI/url/url-format.any.js
@@ -2,10 +2,16 @@
 const blob = new Blob(['test']);
 const file = new File(['test'], 'name');
 
-test(() => {
+test(t => {
   const url_count = 5000;
   let list = [];
 
+  t.add_cleanup(() => {
+    for (let url of list) {
+      URL.revokeObjectURL(url);
+    }
+  });
+
   for (let i = 0; i < url_count; ++i)
     list.push(URL.createObjectURL(blob));
 
diff --git a/test/fixtures/wpt/FileAPI/url/url-with-fetch.any.js b/test/fixtures/wpt/FileAPI/url/url-with-fetch.any.js
index 9bd8d383df4e1e..54e6a3da5afe9e 100644
--- a/test/fixtures/wpt/FileAPI/url/url-with-fetch.any.js
+++ b/test/fixtures/wpt/FileAPI/url/url-with-fetch.any.js
@@ -1,4 +1,5 @@
 // META: script=resources/fetch-tests.js
+// META: script=/common/gc.js
 
 function fetch_should_succeed(test, request) {
   return fetch(request).then(response => response.text());
@@ -37,6 +38,24 @@ promise_test(t => {
   });
 }, 'Revoke blob URL after creating Request, will fetch');
 
+promise_test(async t => {
+  const blob_contents = 'test blob contents';
+  const blob = new Blob([blob_contents]);
+  const url = URL.createObjectURL(blob);
+  let request = new Request(url);
+
+  // Revoke the object URL.  Request should take a reference to the blob as
+  // soon as it receives it in open(), so the request succeeds even though we
+  // revoke the URL before calling fetch().
+  URL.revokeObjectURL(url);
+
+  request = request.clone();
+  await garbageCollect();
+
+  const text = await fetch_should_succeed(t, request);
+  assert_equals(text, blob_contents);
+}, 'Revoke blob URL after creating Request, then clone Request, will fetch');
+
 promise_test(function(t) {
   const blob_contents = 'test blob contents';
   const blob = new Blob([blob_contents]);
diff --git a/test/fixtures/wpt/README.md b/test/fixtures/wpt/README.md
index 98b9369b88c322..1c365ca20ff1b8 100644
--- a/test/fixtures/wpt/README.md
+++ b/test/fixtures/wpt/README.md
@@ -10,14 +10,13 @@ See [test/wpt](../../wpt/README.md) for information on how these tests are run.
 
 Last update:
 
-- common: https://github.com/web-platform-tests/wpt/tree/03c5072aff/common
+- common: https://github.com/web-platform-tests/wpt/tree/dbd648158d/common
 - console: https://github.com/web-platform-tests/wpt/tree/767ae35464/console
 - dom/abort: https://github.com/web-platform-tests/wpt/tree/8fadb38120/dom/abort
 - dom/events: https://github.com/web-platform-tests/wpt/tree/ab8999891c/dom/events
 - encoding: https://github.com/web-platform-tests/wpt/tree/0c1b9d1622/encoding
 - fetch/data-urls/resources: https://github.com/web-platform-tests/wpt/tree/7c79d998ff/fetch/data-urls/resources
-- FileAPI: https://github.com/web-platform-tests/wpt/tree/3b279420d4/FileAPI
-- FileAPI/file: https://github.com/web-platform-tests/wpt/tree/c01f637cca/FileAPI/file
+- FileAPI: https://github.com/web-platform-tests/wpt/tree/1e432c4550/FileAPI
 - hr-time: https://github.com/web-platform-tests/wpt/tree/34cafd797e/hr-time
 - html/webappapis/atob: https://github.com/web-platform-tests/wpt/tree/f267e1dca6/html/webappapis/atob
 - html/webappapis/microtask-queuing: https://github.com/web-platform-tests/wpt/tree/2c5c3c4c27/html/webappapis/microtask-queuing
@@ -26,14 +25,15 @@ Last update:
 - interfaces: https://github.com/web-platform-tests/wpt/tree/df731dab88/interfaces
 - performance-timeline: https://github.com/web-platform-tests/wpt/tree/17ebc3aea0/performance-timeline
 - resource-timing: https://github.com/web-platform-tests/wpt/tree/22d38586d0/resource-timing
-- resources: https://github.com/web-platform-tests/wpt/tree/fbf1e7d247/resources
-- streams: https://github.com/web-platform-tests/wpt/tree/9e5ef42bd3/streams
+- resources: https://github.com/web-platform-tests/wpt/tree/919874f84f/resources
+- streams: https://github.com/web-platform-tests/wpt/tree/51750bc8d7/streams
 - url: https://github.com/web-platform-tests/wpt/tree/1eaeb0e178/url
 - user-timing: https://github.com/web-platform-tests/wpt/tree/df24fb604e/user-timing
 - wasm/jsapi: https://github.com/web-platform-tests/wpt/tree/d8dbe6990b/wasm/jsapi
 - wasm/webapi: https://github.com/web-platform-tests/wpt/tree/fd1b23eeaa/wasm/webapi
 - WebCryptoAPI: https://github.com/web-platform-tests/wpt/tree/238d9d9bac/WebCryptoAPI
 - webidl/ecmascript-binding/es-exceptions: https://github.com/web-platform-tests/wpt/tree/a370aad338/webidl/ecmascript-binding/es-exceptions
+- webmessaging/broadcastchannel: https://github.com/web-platform-tests/wpt/tree/e97fac4791/webmessaging/broadcastchannel
 
 [Web Platform Tests]: https://github.com/web-platform-tests/wpt
 [`git node wpt`]: https://github.com/nodejs/node-core-utils/blob/main/docs/git-node.md#git-node-wpt
diff --git a/test/fixtures/wpt/common/custom-cors-response.js b/test/fixtures/wpt/common/custom-cors-response.js
new file mode 100644
index 00000000000000..be9c7ce3bdc3c9
--- /dev/null
+++ b/test/fixtures/wpt/common/custom-cors-response.js
@@ -0,0 +1,32 @@
+const custom_cors_response = (payload, base_url) => {
+  base_url = base_url || new URL(location.href);
+
+  // Clone the given `payload` so that, as we modify it, we won't be mutating
+  // the caller's value in unexpected ways.
+  payload = Object.assign({}, payload);
+  payload.headers = payload.headers || {};
+  // Note that, in order to have out-of-the-box support for tests that don't
+  // call `setup({'allow_uncaught_exception': true})` we return a no-op JS
+  // payload. This approach will avoid hitting syntax errors if the resource is
+  // interpreted as script. Without this workaround, the SyntaxError would be
+  // caught by the test harness and trigger a test failure.
+  payload.content = payload.content || '/* custom-cors-response.js content */';
+  payload.status_code = payload.status_code || 200;
+
+  // Assume that we'll be doing a CORS-enabled fetch so we'll need to set ACAO.
+  const acao = "Access-Control-Allow-Origin";
+  if (!(acao in payload.headers)) {
+    payload.headers[acao] = '*';
+  }
+
+  if (!("Content-Type" in payload.headers)) {
+    payload.headers["Content-Type"] = "text/javascript";
+  }
+
+  let ret = new URL("/common/CustomCorsResponse.py", base_url);
+  for (const key in payload) {
+    ret.searchParams.append(key, JSON.stringify(payload[key]));
+  }
+
+  return ret;
+};
diff --git a/test/fixtures/wpt/common/dispatcher/README.md b/test/fixtures/wpt/common/dispatcher/README.md
new file mode 100644
index 00000000000000..cfaafb6e5d6496
--- /dev/null
+++ b/test/fixtures/wpt/common/dispatcher/README.md
@@ -0,0 +1,228 @@
+# `RemoteContext`: API for script execution in another context
+
+`RemoteContext` in `/common/dispatcher/dispatcher.js` provides an interface to
+execute JavaScript in another global object (page or worker, the "executor"),
+based on:
+
+- [WPT RFC 88: context IDs from uuid searchParams in URL](https://github.com/web-platform-tests/rfcs/pull/88),
+- [WPT RFC 89: execute_script](https://github.com/web-platform-tests/rfcs/pull/89) and
+- [WPT RFC 91: RemoteContext](https://github.com/web-platform-tests/rfcs/pull/91).
+
+Tests can send arbitrary javascript to executors to evaluate in its global
+object, like:
+
+```
+// injector.html
+const argOnLocalContext = ...;
+
+async function execute() {
+  window.open('executor.html?uuid=' + uuid);
+  const ctx = new RemoteContext(uuid);
+  await ctx.execute_script(
+      (arg) => functionOnRemoteContext(arg),
+      [argOnLocalContext]);
+};
+```
+
+and on executor:
+
+```
+// executor.html
+function functionOnRemoteContext(arg) { ... }
+
+const uuid = new URLSearchParams(window.location.search).get('uuid');
+const executor = new Executor(uuid);
+```
+
+For concrete examples, see
+[events.html](../../html/browsers/browsing-the-web/back-forward-cache/events.html)
+and
+[executor.html](../../html/browsers/browsing-the-web/back-forward-cache/resources/executor.html)
+in back-forward cache tests.
+
+Note that `executor*` files under `/common/dispatcher/` are NOT for
+`RemoteContext.execute_script()`. Use `remote-executor.html` instead.
+
+This is universal and avoids introducing many specific `XXX-helper.html`
+resources.
+Moreover, tests are easier to read, because the whole logic of the test can be
+defined in a single file.
+
+## `new RemoteContext(uuid)`
+
+- `uuid` is a UUID string that identifies the remote context and should match
+  with the `uuid` parameter of the URL of the remote context.
+- Callers should create the remote context outside this constructor (e.g.
+  `window.open('executor.html?uuid=' + uuid)`).
+
+## `RemoteContext.execute_script(fn, args)`
+
+- `fn` is a JavaScript function to execute on the remote context, which is
+  converted to a string using `toString()` and sent to the remote context.
+- `args` is null or an array of arguments to pass to the function on the
+  remote context. Arguments are passed as JSON.
+- If the return value of `fn` when executed in the remote context is a promise,
+  the promise returned by `execute_script` resolves to the resolved value of
+  that promise. Otherwise the `execute_script` promise resolves to the return
+  value of `fn`.
+
+Note that `fn` is evaluated on the remote context (`executor.html` in the
+example above), while `args` are evaluated on the caller context
+(`injector.html`) and then passed to the remote context.
+
+## Return value of injected functions and `execute_script()`
+
+If the return value of the injected function when executed in the remote
+context is a promise, the promise returned by `execute_script` resolves to the
+resolved value of that promise. Otherwise the `execute_script` promise resolves
+to the return value of the function.
+
+When the return value of an injected script is a Promise, it should be resolved
+before any navigation starts on the remote context. For example, it shouldn't
+be resolved after navigating out and navigating back to the page again.
+It's fine to create a Promise to be resolved after navigations, if it's not the
+return value of the injected function.
+
+## Calling timing of `execute_script()`
+
+When `RemoteContext.execute_script()` is called when the remote context is not
+active (for example before it is created, before navigation to the page, or
+during the page is in back-forward cache), the injected script is evaluated
+after the remote context becomes active.
+
+Multiple calls to `RemoteContext.execute_script()` will result in multiple scripts
+being executed in remote context and ordering will be maintained.
+
+## Errors from `execute_script()`
+
+Errors from `execute_script()` will result in promise rejections, so it is
+important to await the result.  This can be `await ctx.execute_script(...)` for
+every call but if there are multiple scripts to executed, it may be preferable
+to wait on them in parallel to avoid incurring full round-trip time for each,
+e.g.
+
+```js
+await Promise.all(
+  ctx1.execute_script(...),
+  ctx1.execute_script(...),
+  ctx2.execute_script(...),
+  ctx2.execute_script(...),
+  ...
+)
+```
+
+## Evaluation timing of injected functions
+
+The script injected by `RemoteContext.execute_script()` can be evaluated any
+time during the remote context is active.
+For example, even before DOMContentLoaded events or even during navigation.
+It's the responsibility of test-specific code/helpers to ensure evaluation
+timing constraints (which can be also test-specific), if any needed.
+
+### Ensuring evaluation timing around page load
+
+For example, to ensure that injected functions (`mainFunction` below) are
+evaluated after the first `pageshow` event, we can use pure JavaScript code
+like below:
+
+```
+// executor.html
+window.pageShowPromise = new Promise(resolve =>
+    window.addEventListener('pageshow', resolve, {once: true}));
+
+
+// injector.html
+const waitForPageShow = async () => {
+  while (!window.pageShowPromise) {
+    await new Promise(resolve => setTimeout(resolve, 100));
+  }
+  await window.pageShowPromise;
+};
+
+await ctx.execute(waitForPageShow);
+await ctx.execute(mainFunction);
+```
+
+### Ensuring evaluation timing around navigation out/unloading
+
+It can be important to ensure there are no injected functions nor code behind
+`RemoteContext` (such as Fetch APIs accessing server-side stash) running after
+navigation is initiated, for example in the case of back-forward cache testing.
+
+To ensure this,
+
+- Do not call the next `RemoteContext.execute()` for the remote context after
+  triggering the navigation, until we are sure that the remote context is not
+  active (e.g. after we confirm that the new page is loaded).
+- Call `Executor.suspend(callback)` synchronously within the injected script.
+  This suspends executor-related code, and calls `callback` when it is ready
+  to start navigation.
+
+The code on the injector side would be like:
+
+```
+// injector.html
+await ctx.execute_script(() => {
+  executor.suspend(() => {
+    location.href = 'new-url.html';
+  });
+});
+```
+
+## Future Work: Possible integration with `test_driver`
+
+Currently `RemoteContext` is implemented by JavaScript and WPT-server-side
+stash, and not integrated with `test_driver` nor `testharness`.
+There is a proposal of `test_driver`-integrated version (see the RFCs listed
+above).
+
+The API semantics and guidelines in this document are designed to be applicable
+to both the current stash-based `RemoteContext` and `test_driver`-based
+version, and thus the tests using `RemoteContext` will be migrated with minimum
+modifications (mostly in `/common/dispatcher/dispatcher.js` and executors), for
+example in a
+[draft CL](https://chromium-review.googlesource.com/c/chromium/src/+/3082215/).
+
+
+# `send()`/`receive()` Message passing APIs
+
+`dispatcher.js` (and its server-side backend `dispatcher.py`) provides a
+universal queue-based message passing API.
+Each queue is identified by a UUID, and accessed via the following APIs:
+
+-   `send(uuid, message)` pushes a string `message` to the queue `uuid`.
+-   `receive(uuid)` pops the first item from the queue `uuid`.
+-   `showRequestHeaders(origin, uuid)` and
+    `cacheableShowRequestHeaders(origin, uuid)` return URLs, that push request
+    headers to the queue `uuid` upon fetching.
+
+It works cross-origin, and even access different browser context groups.
+
+Messages are queued, this means one doesn't need to wait for the receiver to
+listen, before sending the first message
+(but still need to wait for the resolution of the promise returned by `send()`
+to ensure the order between `send()`s).
+
+## Executors
+
+Similar to `RemoteContext.execute_script()`, `send()`/`receive()` can be used
+for sending arbitrary javascript to be evaluated in another page or worker.
+
+- `executor.html` (as a Document),
+- `executor-worker.js` (as a Web Worker), and
+- `executor-service-worker.js` (as a Service Worker)
+
+are examples of executors.
+Note that these executors are NOT compatible with
+`RemoteContext.execute_script()`.
+
+## Future Work
+
+`send()`, `receive()` and the executors below are kept for COEP/COOP tests.
+
+For remote script execution, new tests should use
+`RemoteContext.execute_script()` instead.
+
+For message passing,
+[WPT RFC 90](https://github.com/web-platform-tests/rfcs/pull/90) is still under
+discussion.
diff --git a/test/fixtures/wpt/common/dispatcher/dispatcher.js b/test/fixtures/wpt/common/dispatcher/dispatcher.js
new file mode 100644
index 00000000000000..a0f9f43e622483
--- /dev/null
+++ b/test/fixtures/wpt/common/dispatcher/dispatcher.js
@@ -0,0 +1,256 @@
+// Define a universal message passing API. It works cross-origin and across
+// browsing context groups.
+const dispatcher_path = "/common/dispatcher/dispatcher.py";
+const dispatcher_url = new URL(dispatcher_path, location.href).href;
+
+// Return a promise, limiting the number of concurrent accesses to a shared
+// resources to |max_concurrent_access|.
+const concurrencyLimiter = (max_concurrency) => {
+  let pending = 0;
+  let waiting = [];
+  return async (task) => {
+    pending++;
+    if (pending > max_concurrency)
+      await new Promise(resolve => waiting.push(resolve));
+    let result = await task();
+    pending--;
+    waiting.shift()?.();
+    return result;
+  };
+}
+
+// Wait for a random amount of time in the range [10ms,100ms].
+const randomDelay = () => {
+  return new Promise(resolve => setTimeout(resolve, 10 + 90*Math.random()));
+}
+
+// Sending too many requests in parallel causes congestion. Limiting it improves
+// throughput.
+//
+// Note: The following table has been determined on the test:
+// ../cache-storage.tentative.https.html
+// using Chrome with a 64 core CPU / 64GB ram, in release mode:
+// ┌───────────┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬────┐
+// │concurrency│ 1 │ 2 │ 3 │ 4 │ 5 │ 6 │ 10│ 15│ 20│ 30│ 50│ 100│
+// ├───────────┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼───┼────┤
+// │time (s)   │ 54│ 38│ 31│ 29│ 26│ 24│ 22│ 22│ 22│ 22│ 34│ 36 │
+// └───────────┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴───┴────┘
+const limiter = concurrencyLimiter(6);
+
+// While requests to different remote contexts can go in parallel, we need to
+// ensure that requests to each remote context are done in order. This maps a
+// uuid to a queue of requests to send. A queue is processed until it is empty
+// and then is deleted from the map.
+const sendQueues = new Map();
+
+// Sends a single item (with rate-limiting) and calls the associated resolver
+// when it is successfully sent.
+const sendItem = async function (uuid, resolver, message) {
+  await limiter(async () => {
+    // Requests might be dropped. Retry until getting a confirmation it has been
+    // processed.
+    while(1) {
+      try {
+        let response = await fetch(dispatcher_url + `?uuid=${uuid}`, {
+          method: 'POST',
+          body: message
+        })
+        if (await response.text() == "done") {
+          resolver();
+          return;
+        }
+      } catch (fetch_error) {}
+      await randomDelay();
+    };
+  });
+}
+
+// While the queue is non-empty, send the next item. This is async and new items
+// may be added to the queue while others are being sent.
+const processQueue = async function (uuid, queue) {
+  while (queue.length) {
+    const [resolver, message] = queue.shift();
+    await sendItem(uuid, resolver, message);
+  }
+  // The queue is empty, delete it.
+  sendQueues.delete(uuid);
+}
+
+const send = async function (uuid, message) {
+  const itemSentPromise = new Promise((resolve) => {
+    const item = [resolve, message];
+    if (sendQueues.has(uuid)) {
+      // There is already a queue for `uuid`, just add to it and it will be processed.
+      sendQueues.get(uuid).push(item);
+    } else {
+      // There is no queue for `uuid`, create it and start processing.
+      const queue = [item];
+      sendQueues.set(uuid, queue);
+      processQueue(uuid, queue);
+    }
+  });
+  // Wait until the item has been successfully sent.
+  await itemSentPromise;
+}
+
+const receive = async function (uuid) {
+  while(1) {
+    let data = "not ready";
+    try {
+      data = await limiter(async () => {
+        let response = await fetch(dispatcher_url + `?uuid=${uuid}`);
+        return await response.text();
+      });
+    } catch (fetch_error) {}
+
+    if (data == "not ready") {
+      await randomDelay();
+      continue;
+    }
+
+    return data;
+  }
+}
+
+// Returns an URL. When called, the server sends toward the `uuid` queue the
+// request headers. Useful for determining if something was requested with
+// Cookies.
+const showRequestHeaders = function(origin, uuid) {
+  return origin + dispatcher_path + `?uuid=${uuid}&show-headers`;
+}
+
+// Same as above, except for the response is cacheable.
+const cacheableShowRequestHeaders = function(origin, uuid) {
+  return origin + dispatcher_path + `?uuid=${uuid}&cacheable&show-headers`;
+}
+
+// This script requires
+// - `/common/utils.js` for `token()`.
+
+// Returns the URL of a document that can be used as a `RemoteContext`.
+//
+// `uuid` should be a UUID uniquely identifying the given remote context.
+// `options` has the following shape:
+//
+// {
+//   host: (optional) Sets the returned URL's `host` property. Useful for
+//     cross-origin executors.
+//   protocol: (optional) Sets the returned URL's `protocol` property.
+// }
+function remoteExecutorUrl(uuid, options) {
+  const url = new URL("/common/dispatcher/remote-executor.html", location);
+  url.searchParams.set("uuid", uuid);
+
+  if (options?.host) {
+    url.host = options.host;
+  }
+
+  if (options?.protocol) {
+    url.protocol = options.protocol;
+  }
+
+  return url;
+}
+
+// Represents a remote executor. For more detailed explanation see `README.md`.
+class RemoteContext {
+  // `uuid` is a UUID string that identifies the remote context and should
+  // match with the `uuid` parameter of the URL of the remote context.
+  constructor(uuid) {
+    this.context_id = uuid;
+  }
+
+  // Evaluates the script `expr` on the executor.
+  // - If `expr` is evaluated to a Promise that is resolved with a value:
+  //   `execute_script()` returns a Promise resolved with the value.
+  // - If `expr` is evaluated to a non-Promise value:
+  //   `execute_script()` returns a Promise resolved with the value.
+  // - If `expr` throws an error or is evaluated to a Promise that is rejected:
+  //   `execute_script()` returns a rejected Promise with the error's
+  //   `message`.
+  //   Note that currently the type of error (e.g. DOMException) is not
+  //   preserved, except for `TypeError`.
+  // The values should be able to be serialized by JSON.stringify().
+  async execute_script(fn, args) {
+    const receiver = token();
+    await this.send({receiver: receiver, fn: fn.toString(), args: args});
+    const response = JSON.parse(await receive(receiver));
+    if (response.status === 'success') {
+      return response.value;
+    }
+
+    // exception
+    if (response.name === 'TypeError') {
+      throw new TypeError(response.value);
+    }
+    throw new Error(response.value);
+  }
+
+  async send(msg) {
+    return await send(this.context_id, JSON.stringify(msg));
+  }
+};
+
+class Executor {
+  constructor(uuid) {
+    this.uuid = uuid;
+
+    // If `suspend_callback` is not `null`, the executor should be suspended
+    // when there are no ongoing tasks.
+    this.suspend_callback = null;
+
+    this.execute();
+  }
+
+  // Wait until there are no ongoing tasks nor fetch requests for polling
+  // tasks, and then suspend the executor and call `callback()`.
+  // Navigation from the executor page should be triggered inside `callback()`,
+  // to avoid conflict with in-flight fetch requests.
+  suspend(callback) {
+    this.suspend_callback = callback;
+  }
+
+  resume() {
+  }
+
+  async execute() {
+    while(true) {
+      if (this.suspend_callback !== null) {
+        this.suspend_callback();
+        this.suspend_callback = null;
+        // Wait for `resume()` to be called.
+        await new Promise(resolve => this.resume = resolve);
+
+        // Workaround for https://crbug.com/1244230.
+        // Without this workaround, the executor is resumed and the fetch
+        // request to poll the next task is initiated synchronously from
+        // pageshow event after the page restored from BFCache, and the fetch
+        // request promise is never resolved (and thus the test results in
+        // timeout) due to https://crbug.com/1244230. The root cause is not yet
+        // known, but setTimeout() with 0ms causes the resume triggered on
+        // another task and seems to resolve the issue.
+        await new Promise(resolve => setTimeout(resolve, 0));
+
+        continue;
+      }
+
+      const task = JSON.parse(await receive(this.uuid));
+
+      let response;
+      try {
+        const value = await eval(task.fn).apply(null, task.args);
+        response = JSON.stringify({
+          status: 'success',
+          value: value
+        });
+      } catch(e) {
+        response = JSON.stringify({
+          status: 'exception',
+          name: e.name,
+          value: e.message
+        });
+      }
+      await send(task.receiver, response);
+    }
+  }
+}
diff --git a/test/fixtures/wpt/common/dispatcher/executor-service-worker.js b/test/fixtures/wpt/common/dispatcher/executor-service-worker.js
new file mode 100644
index 00000000000000..0b47d66b65f066
--- /dev/null
+++ b/test/fixtures/wpt/common/dispatcher/executor-service-worker.js
@@ -0,0 +1,24 @@
+importScripts('./dispatcher.js');
+
+const params = new URLSearchParams(location.search);
+const uuid = params.get('uuid');
+
+// The fetch handler must be registered before parsing the main script response.
+// So do it here, for future use.
+fetchHandler = () => {}
+addEventListener('fetch', e => {
+  fetchHandler(e);
+});
+
+// Force ServiceWorker to immediately activate itself.
+addEventListener('install', event => {
+  skipWaiting();
+});
+
+let executeOrders = async function() {
+  while(true) {
+    let task = await receive(uuid);
+    eval(`(async () => {${task}})()`);
+  }
+};
+executeOrders();
diff --git a/test/fixtures/wpt/common/dispatcher/executor-worker.js b/test/fixtures/wpt/common/dispatcher/executor-worker.js
new file mode 100644
index 00000000000000..ea065a6bf11955
--- /dev/null
+++ b/test/fixtures/wpt/common/dispatcher/executor-worker.js
@@ -0,0 +1,12 @@
+importScripts('./dispatcher.js');
+
+const params = new URLSearchParams(location.search);
+const uuid = params.get('uuid');
+
+let executeOrders = async function() {
+  while(true) {
+    let task = await receive(uuid);
+    eval(`(async () => {${task}})()`);
+  }
+};
+executeOrders();
diff --git a/test/fixtures/wpt/common/dispatcher/executor.html b/test/fixtures/wpt/common/dispatcher/executor.html
new file mode 100644
index 00000000000000..5fe6a95efaf97d
--- /dev/null
+++ b/test/fixtures/wpt/common/dispatcher/executor.html
@@ -0,0 +1,15 @@
+<script src="./dispatcher.js"></script>
+<script>
+
+const params = new URLSearchParams(window.location.search);
+const uuid = params.get('uuid');
+
+let executeOrders = async function() {
+  while(true) {
+    let task = await receive(uuid);
+    eval(`(async () => {${task}})()`);
+  }
+};
+executeOrders();
+
+</script>
diff --git a/test/fixtures/wpt/common/dispatcher/remote-executor.html b/test/fixtures/wpt/common/dispatcher/remote-executor.html
new file mode 100644
index 00000000000000..8b0030390d0d19
--- /dev/null
+++ b/test/fixtures/wpt/common/dispatcher/remote-executor.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<meta charset="utf-8">
+<body>
+</body>
+<script src="./dispatcher.js"></script>
+<script>
+  const params = new URLSearchParams(window.location.search);
+  const uuid = params.get('uuid');
+  const executor = new Executor(uuid);  // `execute()` is called in constructor.
+</script>
+</html>
diff --git a/test/fixtures/wpt/common/gc.js b/test/fixtures/wpt/common/gc.js
new file mode 100644
index 00000000000000..ac43a4cfaf7735
--- /dev/null
+++ b/test/fixtures/wpt/common/gc.js
@@ -0,0 +1,52 @@
+/**
+ * Does a best-effort attempt at invoking garbage collection. Attempts to use
+ * the standardized `TestUtils.gc()` function, but falls back to other
+ * environment-specific nonstandard functions, with a final result of just
+ * creating a lot of garbage (in which case you will get a console warning).
+ *
+ * This should generally only be used to attempt to trigger bugs and crashes
+ * inside tests, i.e. cases where if garbage collection happened, then this
+ * should not trigger some misbehavior. You cannot rely on garbage collection
+ * successfully trigger, or that any particular unreachable object will be
+ * collected.
+ *
+ * @returns {Promise<undefined>} A promise you should await to ensure garbage
+ * collection has had a chance to complete.
+ */
+self.garbageCollect = async () => {
+  // https://testutils.spec.whatwg.org/#the-testutils-namespace
+  if (self.TestUtils?.gc) {
+    return TestUtils.gc();
+  }
+
+  // Use --expose_gc for V8 (and Node.js)
+  // to pass this flag at chrome launch use: --js-flags="--expose-gc"
+  // Exposed in SpiderMonkey shell as well
+  if (self.gc) {
+    return self.gc();
+  }
+
+  // Present in some WebKit development environments
+  if (self.GCController) {
+    return GCController.collect();
+  }
+
+  console.warn(
+    'Tests are running without the ability to do manual garbage collection. ' +
+    'They will still work, but coverage will be suboptimal.');
+
+  for (var i = 0; i < 1000; i++) {
+    gcRec(10);
+  }
+
+  function gcRec(n) {
+    if (n < 1) {
+      return {};
+    }
+
+    let temp = { i: "ab" + i + i / 100000 };
+    temp += "foo";
+
+    gcRec(n - 1);
+  }
+};
diff --git a/test/fixtures/wpt/common/media.js b/test/fixtures/wpt/common/media.js
index e9b1e6b0fbe6ae..f2dc8612660495 100644
--- a/test/fixtures/wpt/common/media.js
+++ b/test/fixtures/wpt/common/media.js
@@ -47,9 +47,9 @@ function getMediaContentType(url) {
     var extension = new URL(url, location).pathname.split(".").pop();
     var map = {
         "mp4": "video/mp4",
-        "ogv": "video/ogg",
+        "ogv": "application/ogg",
         "mp3": "audio/mp3",
-        "oga": "audio/ogg",
+        "oga": "application/ogg",
     };
     return map[extension];
 }
diff --git a/test/fixtures/wpt/common/object-association.js b/test/fixtures/wpt/common/object-association.js
index 458aae67db0cef..669c17c07b1ae5 100644
--- a/test/fixtures/wpt/common/object-association.js
+++ b/test/fixtures/wpt/common/object-association.js
@@ -1,58 +1,64 @@
 "use strict";
 
-// For now this only has per-Window tests, but we could expand it to also test per-Document
+// This is for testing whether an object (e.g., a global property) is associated with Window, or
+// with Document. Recall that Window and Document are 1:1 except when doing a same-origin navigation
+// away from the initial about:blank. In that case the Window object gets reused for the new
+// Document.
+//
+// So:
+// - If something is per-Window, then it should maintain its identity across an about:blank
+//   navigation.
+// - If something is per-Document, then it should be recreated across an about:blank navigation.
 
-/**
- * Run tests for window[propertyName] after discarding the browsing context, navigating, etc.
- * @param {string} propertyName
- */
 window.testIsPerWindow = propertyName => {
-  test(t => {
+  runTests(propertyName, assert_equals, "must not");
+};
+
+window.testIsPerDocument = propertyName => {
+  runTests(propertyName, assert_not_equals, "must");
+};
+
+function runTests(propertyName, equalityOrInequalityAsserter, mustOrMustNotReplace) {
+  async_test(t => {
     const iframe = document.createElement("iframe");
     document.body.appendChild(iframe);
     const frame = iframe.contentWindow;
 
     const before = frame[propertyName];
-    assert_true(before !== undefined && before !== null, `window.${propertyName} must be implemented`);
+    assert_implements(before, `window.${propertyName} must be implemented`);
 
-    iframe.remove();
+    iframe.onload = t.step_func_done(() => {
+      const after = frame[propertyName];
+      equalityOrInequalityAsserter(after, before);
+    });
 
-    const after = frame[propertyName];
-    assert_equals(after, before, `window.${propertyName} should not change after iframe.remove()`);
-  }, `Discarding the browsing context must not change window.${propertyName}`);
+    iframe.src = "/common/blank.html";
+  }, `Navigating from the initial about:blank ${mustOrMustNotReplace} replace window.${propertyName}`);
 
-  async_test(t => {
+  // Per spec, discarding a browsing context should not change any of the global objects.
+  test(() => {
     const iframe = document.createElement("iframe");
     document.body.appendChild(iframe);
     const frame = iframe.contentWindow;
 
     const before = frame[propertyName];
-    assert_true(before !== undefined && before !== null, `window.${propertyName} must be implemented`);
-
-    // Note: cannot use step_func_done for this because it might be called twice, per the below comment.
-    iframe.onload = t.step_func(() => {
-      if (frame.location.href === "about:blank") {
-        // Browsers are not reliable on whether about:blank fires the load event; see
-        // https://github.com/whatwg/html/issues/490
-        return;
-      }
+    assert_implements(before, `window.${propertyName} must be implemented`);
 
-      const after = frame[propertyName];
-      assert_equals(after, before);
-      t.done();
-    });
+    iframe.remove();
 
-    iframe.src = "/common/blank.html";
-  }, `Navigating from the initial about:blank must not replace window.${propertyName}`);
+    const after = frame[propertyName];
+    assert_equals(after, before, `window.${propertyName} should not change after iframe.remove()`);
+  }, `Discarding the browsing context must not change window.${propertyName}`);
 
-  // Per spec, document.open() should not change any of the Window state.
+  // Per spec, document.open() should not change any of the global objects. In historical versions
+  // of the spec, it did, so we test here.
   async_test(t => {
     const iframe = document.createElement("iframe");
 
     iframe.onload = t.step_func_done(() => {
       const frame = iframe.contentWindow;
       const before = frame[propertyName];
-      assert_true(before !== undefined && before !== null, `window.${propertyName} must be implemented`);
+      assert_implements(before, `window.${propertyName} must be implemented`);
 
       frame.document.open();
 
@@ -64,5 +70,5 @@ window.testIsPerWindow = propertyName => {
 
     iframe.src = "/common/blank.html";
     document.body.appendChild(iframe);
-  }, `document.open() must replace window.${propertyName}`);
-};
+  }, `document.open() must not replace window.${propertyName}`);
+}
diff --git a/test/fixtures/wpt/common/proxy-all.sub.pac b/test/fixtures/wpt/common/proxy-all.sub.pac
new file mode 100644
index 00000000000000..de601e5d7020e0
--- /dev/null
+++ b/test/fixtures/wpt/common/proxy-all.sub.pac
@@ -0,0 +1,3 @@
+function FindProxyForURL(url, host) {
+    return "PROXY {{host}}:{{ports[http][0]}}"
+}
diff --git a/test/fixtures/wpt/common/reftest-wait.js b/test/fixtures/wpt/common/reftest-wait.js
index 0a30a197f07f4d..64fe9bfd7f54ae 100644
--- a/test/fixtures/wpt/common/reftest-wait.js
+++ b/test/fixtures/wpt/common/reftest-wait.js
@@ -18,3 +18,22 @@ function takeScreenshotDelayed(timeout) {
         takeScreenshot();
     }, timeout);
 }
+
+/**
+ * Ensure that a precondition is met before waiting for a screenshot.
+ * @param {bool} condition - Fail the test if this evaluates to false
+ * @param {string} msg - Error message to write to the screenshot
+ */
+function failIfNot(condition, msg) {
+  const fail = () => {
+    (document.body || document.documentElement).textContent = `Precondition Failed: ${msg}`;
+    takeScreenshot();
+  };
+  if (!condition) {
+    if (document.readyState == "interactive") {
+      fail();
+    } else {
+      document.addEventListener("DOMContentLoaded", fail, false);
+    }
+  }
+}
diff --git a/test/fixtures/wpt/common/sab.js b/test/fixtures/wpt/common/sab.js
index 47d12970d393c1..a3ea610e165d0d 100644
--- a/test/fixtures/wpt/common/sab.js
+++ b/test/fixtures/wpt/common/sab.js
@@ -6,14 +6,14 @@ const createBuffer = (() => {
   } catch(e) {
     sabConstructor = null;
   }
-  return (type, length) => {
+  return (type, length, opts) => {
     if (type === "ArrayBuffer") {
-      return new ArrayBuffer(length);
+      return new ArrayBuffer(length, opts);
     } else if (type === "SharedArrayBuffer") {
       if (sabConstructor && sabConstructor.name !== "SharedArrayBuffer") {
         throw new Error("WebAssembly.Memory does not support shared:true");
       }
-      return new sabConstructor(length);
+      return new sabConstructor(length, opts);
     } else {
       throw new Error("type has to be ArrayBuffer or SharedArrayBuffer");
     }
diff --git a/test/fixtures/wpt/common/security-features/resources/common.sub.js b/test/fixtures/wpt/common/security-features/resources/common.sub.js
index 402ce9bbacf347..96ca280597bf29 100644
--- a/test/fixtures/wpt/common/security-features/resources/common.sub.js
+++ b/test/fixtures/wpt/common/security-features/resources/common.sub.js
@@ -485,9 +485,13 @@ function dedicatedWorkerUrlThatFetches(url) {
       .catch((e) => postMessage(e.message));`;
 }
 
-function workerUrlThatImports(url) {
+function workerUrlThatImports(url, additionalAttributes) {
+  let csp = "";
+  if (additionalAttributes && additionalAttributes.contentSecurityPolicy) {
+    csp=`&contentSecurityPolicy=${additionalAttributes.contentSecurityPolicy}`;
+  }
   return `/common/security-features/subresource/static-import.py` +
-      `?import_url=${encodeURIComponent(url)}`;
+      `?import_url=${encodeURIComponent(url)}${csp}`;
 }
 
 function workerDataUrlThatImports(url) {
@@ -630,6 +634,24 @@ function requestViaScript(url, additionalAttributes) {
     .then(event => wrapResult(event.data));
 }
 
+/**
+ * Creates a new script element that performs a dynamic import to `url`, and
+ * appends the script element to {@code document.body}.
+ * @param {string} url The src URL.
+ * @return {Promise} The promise for success/error events.
+ */
+function requestViaDynamicImport(url, additionalAttributes) {
+  const scriptUrl = `data:text/javascript,import("${url}");`;
+  const script = createElement(
+      "script",
+      Object.assign({"src": scriptUrl}, additionalAttributes),
+      document.body,
+      false);
+
+  return bindEvents2(window, "message", script, "error", window, "error")
+    .then(event => wrapResult(event.data));
+}
+
 /**
  * Creates a new form element, sets attributes, appends it to
  *     {@code document.body} and submits the form.
@@ -866,6 +888,10 @@ const subresourceMap = {
     path: "/common/security-features/subresource/script.py",
     invoker: requestViaScript,
   },
+  "script-tag-dynamic-import": {
+    path: "/common/security-features/subresource/script.py",
+    invoker: requestViaDynamicImport,
+  },
   "video-tag": {
     path: "/common/security-features/subresource/video.py",
     invoker: requestViaVideo,
@@ -885,8 +911,8 @@ const subresourceMap = {
   },
   "worker-import": {
     path: "/common/security-features/subresource/worker.py",
-    invoker: url =>
-        requestViaDedicatedWorker(workerUrlThatImports(url), {type: "module"}),
+    invoker: (url, additionalAttributes) =>
+        requestViaDedicatedWorker(workerUrlThatImports(url, additionalAttributes), {type: "module"}),
   },
   "worker-import-data": {
     path: "/common/security-features/subresource/worker.py",
@@ -903,8 +929,8 @@ const subresourceMap = {
   },
   "sharedworker-import": {
     path: "/common/security-features/subresource/shared-worker.py",
-    invoker: url =>
-        requestViaSharedWorker(workerUrlThatImports(url), {type: "module"}),
+    invoker: (url, additionalAttributes) =>
+        requestViaSharedWorker(workerUrlThatImports(url, additionalAttributes), {type: "module"}),
   },
   "sharedworker-import-data": {
     path: "/common/security-features/subresource/shared-worker.py",
@@ -1087,6 +1113,10 @@ function invokeRequest(subresource, sourceContextList) {
         additionalAttributes[policyDelivery.key] = policyDelivery.value;
       } else if (policyDelivery.deliveryType === "rel-noref") {
         additionalAttributes["rel"] = "noreferrer";
+      } else if (policyDelivery.deliveryType === "http-rp") {
+        additionalAttributes[policyDelivery.key] = policyDelivery.value;
+      } else if (policyDelivery.deliveryType === "meta") {
+        additionalAttributes[policyDelivery.key] = policyDelivery.value;
       }
     }
 
diff --git a/test/fixtures/wpt/common/security-features/tools/spec.src.json b/test/fixtures/wpt/common/security-features/tools/spec.src.json
index 0a46a1cd6d3182..4a84493f475b01 100644
--- a/test/fixtures/wpt/common/security-features/tools/spec.src.json
+++ b/test/fixtures/wpt/common/security-features/tools/spec.src.json
@@ -106,6 +106,7 @@
         "object-tag",
         "picture-tag",
         "script-tag",
+        "script-tag-dynamic-import",
         "sharedworker-classic",
         "sharedworker-import",
         "sharedworker-import-data",
@@ -327,26 +328,6 @@
       ],
       "subresourcePolicyDeliveries": []
     },
-    "worker-classic-inherit": {
-      // This is applicable to upgrade-insecure-requests and mixed-content tests.
-      // Use "worker-classic" for referrer-policy.
-      "description": "dedicated workers should inherit its parent's policy.",
-      "sourceContextList": [
-        {
-          "sourceContextType": "top",
-          "policyDeliveries": [
-            "policy"
-          ]
-        },
-        {
-          "sourceContextType": "worker-classic",
-          "policyDeliveries": [
-            "anotherPolicy"
-          ]
-        }
-      ],
-      "subresourcePolicyDeliveries": []
-    },
     "worker-classic-data": {
       "description": "data: dedicated workers should inherit its parent's policy.",
       "sourceContextList": [
@@ -365,7 +346,6 @@
     },
     "worker-module": {
       // This is applicable to referrer-policy tests.
-      // Use "worker-module-inherit" for CSP (mixed-content, etc.).
       "description": "dedicated workers shouldn't inherit its parent's policy.",
       "sourceContextList": [
         {
@@ -383,26 +363,6 @@
       ],
       "subresourcePolicyDeliveries": []
     },
-    "worker-module-inherit": {
-      // This is applicable to upgrade-insecure-requests and mixed-content tests.
-      // Use "worker-module" for referrer-policy.
-      "description": "dedicated workers should inherit its parent's policy.",
-      "sourceContextList": [
-        {
-          "sourceContextType": "top",
-          "policyDeliveries": [
-            "policy"
-          ]
-        },
-        {
-          "sourceContextType": "worker-module",
-          "policyDeliveries": [
-            "anotherPolicy"
-          ]
-        }
-      ],
-      "subresourcePolicyDeliveries": []
-    },
     "worker-module-data": {
       "description": "data: dedicated workers should inherit its parent's policy.",
       "sourceContextList": [
@@ -505,10 +465,8 @@
       "iframe",
       "iframe-blank-inherit",
       "worker-classic",
-      "worker-classic-inherit",
       "worker-classic-data",
       "worker-module",
-      "worker-module-inherit",
       "worker-module-data",
       "sharedworker-classic",
       "sharedworker-classic-data",
@@ -550,6 +508,7 @@
       "object-tag",
       "picture-tag",
       "script-tag",
+      "script-tag-dynamic-import",
       "sharedworker-classic",
       "sharedworker-import",
       "sharedworker-import-data",
diff --git a/test/fixtures/wpt/common/stringifiers.js b/test/fixtures/wpt/common/stringifiers.js
index 18de6c8c5b32c5..8dadac1d4929d9 100644
--- a/test/fixtures/wpt/common/stringifiers.js
+++ b/test/fixtures/wpt/common/stringifiers.js
@@ -1,5 +1,5 @@
 /**
- * Runs tests for <http://heycam.github.io/webidl/#es-stringifier>.
+ * Runs tests for <https://webidl.spec.whatwg.org/#es-stringifier>.
  * @param {Object} aObject - object to test
  * @param {string} aAttribute - IDL attribute name that is annotated with `stringifier`
  * @param {boolean} aIsUnforgeable - whether the IDL attribute is `[LegacyUnforgeable]`
diff --git a/test/fixtures/wpt/dom/events/document-level-touchmove-event-listener-passive-by-default.tentative.html b/test/fixtures/wpt/dom/events/document-level-touchmove-event-listener-passive-by-default.tentative.html
deleted file mode 100644
index f3f0d58209fd8e..00000000000000
--- a/test/fixtures/wpt/dom/events/document-level-touchmove-event-listener-passive-by-default.tentative.html
+++ /dev/null
@@ -1,73 +0,0 @@
-<!DOCTYPE html>
-<title>Default passive document level touchmove event listener test</title>
-<link rel="help" href="https://github.com/WICG/interventions/issues/35">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/resources/testdriver.js"></script>
-<script src="/resources/testdriver-actions.js"></script>
-<script src="/resources/testdriver-vendor.js"></script>
-<body onload=runTest()>
-<div id="touchDiv">
-</div>
-</body>
-<style>
-#touchDiv {
-  width: 100px;
-  height: 100px;
-}
-</style>
-<script>
-var touch_div = document.getElementById("touchDiv");
-var cancelable = true;
-var touch_move_arrived = false;
-document.addEventListener("touchmove", function (event) {
-    cancelable = event.cancelable;
-    touch_move_arrived = true;
-    event.preventDefault();
-});
-
-function waitFor(condition) {
-  const MAX_FRAME = 500;
-  return new Promise((resolve, reject) => {
-    function tick(frames) {
-      // We requestAnimationFrame either for 500 frames or until condition is
-      // met.
-      if (frames >= MAX_FRAME)
-        reject("Condition did not become true after 500 frames");
-      else if (condition())
-        resolve();
-      else
-        requestAnimationFrame(tick.bind(this, frames + 1));
-    }
-    tick(0);
-  });
-}
-
-function waitForCompositorCommit() {
-  return new Promise((resolve) => {
-    // rAF twice.
-    window.requestAnimationFrame(() => {
-      window.requestAnimationFrame(resolve);
-    });
-  });
-}
-
-function injectInput() {
-  new test_driver.Actions()
-    .addPointer("touch_pointer", "touch")
-    .pointerMove(0, 0, {origin: touch_div})
-    .pointerDown()
-    .pointerMove(30, 30)
-    .pointerUp()
-    .send();
-}
-
-function runTest() {
-  promise_test (async () => {
-    await waitForCompositorCommit();
-    injectInput();
-    await waitFor(()=> { return touch_move_arrived; });
-    assert_false(cancelable);
-  }, "Touchmove events are non-cancelable since the event listener is treated as passive.");
-}
-</script>
diff --git a/test/fixtures/wpt/dom/events/document-level-wheel-event-listener-passive-by-default.tentative.html b/test/fixtures/wpt/dom/events/document-level-wheel-event-listener-passive-by-default.tentative.html
deleted file mode 100644
index b7224835fa398b..00000000000000
--- a/test/fixtures/wpt/dom/events/document-level-wheel-event-listener-passive-by-default.tentative.html
+++ /dev/null
@@ -1,51 +0,0 @@
-<!DOCTYPE html>
-<title>Default passive document level wheel event listener manual test</title>
-<link rel="help" href="https://github.com/WICG/interventions/issues/64">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/resources/testdriver.js"></script>
-<script src="/resources/testdriver-actions.js"></script>
-<script src="/resources/testdriver-vendor.js"></script>
-<body onload=runTest()>
-<div>This is a manual test since there is no way to synthesize wheel events.
-Scroll by wheel in the middle of the page to run the test.</div>
-</body>
-<script>
-var cancelable = true;
-var wheel_arrived = false;
-document.addEventListener("wheel", function (event) {
-    cancelable = event.cancelable;
-    wheel_arrived = true;
-    event.preventDefault();
-});
-
-function waitFor(condition) {
-  const MAX_FRAME = 200;
-  return new Promise((resolve, reject) => {
-    function tick(frames) {
-      // We requestAnimationFrame either for 200 frames or until condition is
-      // met.
-      if (frames >= MAX_FRAME)
-        reject("Condition did not become true after 200 frames");
-      else if (condition())
-        resolve();
-      else
-        requestAnimationFrame(tick.bind(this, frames + 1));
-    }
-    tick(0);
-  });
-}
-
-function runTest() {
-  promise_test (async () => {
-    const pos_x = Math.floor(window.innerWidth / 2);
-    const pos_y = Math.floor(window.innerHeight / 2);
-    const delta_x = 0;
-    const delta_y = 100;
-    await new test_driver.Actions()
-       .scroll(pos_x, pos_y, delta_x, delta_y).send();
-    await waitFor(()=> { return wheel_arrived; });
-    assert_false(cancelable);
-  }, "Wheel events are non-cancelable since the event listener is treated as passive.");
-}
-</script>
diff --git a/test/fixtures/wpt/encoding/gb18030-encoder.html b/test/fixtures/wpt/encoding/gb18030-encoder.html
deleted file mode 100644
index 799d69274ef4fb..00000000000000
--- a/test/fixtures/wpt/encoding/gb18030-encoder.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!doctype html>
-<meta charset=gb18030> <!-- if the server overrides this, it is stupid, as this is a testsuite -->
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<div id=log></div>
-<script>
- function encode(input, output, desc) {
-   test(function() {
-     var a = document.createElement("a") // <a> uses document encoding for URL's query
-     a.href = "https://example.com/?" + input
-     assert_equals(a.search.substr(1), output) // remove leading "?"
-   }, "gb18030 encoder: " + desc)
- }
-
- encode("s", "s", "very basic")
- encode("\u20AC", "%A2%E3", "Euro")
- encode("\u4E02", "%81@", "character")
- encode("\uE4C6", "%A1@", "PUA")
- encode("\uE4C5", "%FE%FE", "PUA #2")
- encode("\ud83d\udca9", "%949%DA3", "poo")
-</script>
diff --git a/test/fixtures/wpt/encoding/gbk-encoder.html b/test/fixtures/wpt/encoding/gbk-encoder.html
deleted file mode 100644
index a6074f975d34fb..00000000000000
--- a/test/fixtures/wpt/encoding/gbk-encoder.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!doctype html>
-<meta charset=gbk> <!-- if the server overrides this, it is stupid, as this is a testsuite -->
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<div id=log></div>
-<script>
- function encode(input, output, desc) {
-   test(function() {
-     var a = document.createElement("a") // <a> uses document encoding for URL's query
-     a.href = "https://example.com/?" + input
-     assert_equals(a.search.substr(1), output) // remove leading "?"
-   }, "gbk encoder: " + desc)
- }
-
- encode("s", "s", "very basic")
- encode("\u20AC", "%80", "Euro")
- encode("\u4E02", "%81@", "character")
- encode("\uE4C6", "%A1@", "PUA")
- encode("\uE4C5", "%FE%FE", "PUA #2")
- encode("\ud83d\udca9", "%26%23128169%3B", "poo")
-</script>
diff --git a/test/fixtures/wpt/encoding/legacy-mb-schinese/gb18030/gb18030-decoder.html b/test/fixtures/wpt/encoding/legacy-mb-schinese/gb18030/gb18030-decoder.html
deleted file mode 100644
index b8fb0d04c44ee7..00000000000000
--- a/test/fixtures/wpt/encoding/legacy-mb-schinese/gb18030/gb18030-decoder.html
+++ /dev/null
@@ -1,55 +0,0 @@
-<!doctype html>
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script src=resources/ranges.js></script>
-<script>
- const decode = (input, output, desc) => {
-   test(function() {
-     for (encoding of ["gb18030", "gbk"])
-       assert_equals(new TextDecoder(encoding).decode(new Uint8Array(input)), output)
-   }, "gb18030 decoder: " + desc)
- }
-
- decode([115], "s", "ASCII");
- decode([0x80], "\u20AC", "euro");
- decode([0xFF], "\uFFFD", "initial byte out of accepted ranges");
- decode([0x81], "\uFFFD", "end of queue, gb18030 first not 0");
- decode([0x81, 0x28], "\ufffd(", "two bytes 0x81 0x28");
- decode([0x81, 0x40], "\u4E02", "two bytes 0x81 0x40");
- decode([0x81, 0x7E], "\u4E8A", "two bytes 0x81 0x7e");
- decode([0x81, 0x7F], "\ufffd\u007f", "two bytes 0x81 0x7f");
- decode([0x81, 0x80], "\u4E90", "two bytes 0x81 0x80");
- decode([0x81, 0xFE], "\u4FA2", "two bytes 0x81 0xFE");
- decode([0x81, 0xFF], "\ufffd", "two bytes 0x81 0xFF");
- decode([0xFE, 0x40], "\uFA0C", "two bytes 0xFE 0x40");
- decode([0xFE, 0xFE], "\uE4C5", "two bytes 0xFE 0xFE");
- decode([0xFE, 0xFF], "\ufffd", "two bytes 0xFE 0xFF");
- decode([0x81, 0x30], "\ufffd", "two bytes 0x81 0x30");
- decode([0x81, 0x30, 0xFE], "\ufffd", "three bytes 0x81 0x30 0xFE");
- decode([0x81, 0x30, 0xFF], "\ufffd0\ufffd", "three bytes 0x81 0x30 0xFF");
- decode([0x81, 0x30, 0xFE, 0x29], "\ufffd0\ufffd)", "four bytes 0x81 0x30 0xFE 0x29");
- decode([0xFE, 0x39, 0xFE, 0x39], "\ufffd", "four bytes 0xFE 0x39 0xFE 0x39");
- decode([0x81, 0x35, 0xF4, 0x36], "\u1E3E", "pointer 7458");
- decode([0x81, 0x35, 0xF4, 0x37], "\ue7c7", "pointer 7457");
- decode([0x81, 0x35, 0xF4, 0x38], "\u1E40", "pointer 7459");
- decode([0x84, 0x31, 0xA4, 0x39], "\uffff", "pointer 39419");
- decode([0x84, 0x31, 0xA5, 0x30], "\ufffd", "pointer 39420");
- decode([0x8F, 0x39, 0xFE, 0x39], "\ufffd", "pointer 189999");
- decode([0x90, 0x30, 0x81, 0x30], "\u{10000}", "pointer 189000");
- decode([0xE3, 0x32, 0x9A, 0x35], "\u{10FFFF}", "pointer 1237575");
- decode([0xE3, 0x32, 0x9A, 0x36], "\ufffd", "pointer 1237576");
- decode([0x83, 0x36, 0xC8, 0x30], "\uE7C8", "legacy ICU special case 1");
- decode([0xA1, 0xAD], "\u2026", "legacy ICU special case 2");
- decode([0xA1, 0xAB], "\uFF5E", "legacy ICU special case 3");
-
- let i = 0;
- for (const range of ranges) {
-   const pointer = range[0];
-   decode([
-     Math.floor(pointer / 12600) + 0x81,
-     Math.floor((pointer % 12600) / 1260) + 0x30,
-     Math.floor((pointer % 1260) / 10) + 0x81,
-     pointer % 10 + 0x30
-   ], range[1], "range " + i++);
- }
-</script>
diff --git a/test/fixtures/wpt/encoding/legacy-mb-schinese/gbk/gbk-decoder.html b/test/fixtures/wpt/encoding/legacy-mb-schinese/gbk/gbk-decoder.html
deleted file mode 100644
index 8c45683180070e..00000000000000
--- a/test/fixtures/wpt/encoding/legacy-mb-schinese/gbk/gbk-decoder.html
+++ /dev/null
@@ -1,33 +0,0 @@
-<!doctype html>
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script>
-const gbkPointers = [
-    6432, 7533, 7536, 7672, 7673, 7674, 7675, 7676, 7677, 7678, 7679, 7680, 7681, 7682, 7683, 7684,
-    23766, 23770, 23771, 23772, 23773, 23774, 23776, 23777, 23778, 23779, 23780, 23781, 23782, 23784, 23785, 23786,
-    23787, 23790, 23791, 23792, 23793, 23796, 23797, 23798, 23799, 23800, 23801, 23802, 23803, 23805, 23806, 23807,
-    23808, 23809, 23810, 23811, 23813, 23814, 23815, 23816, 23817, 23818, 23819, 23820, 23821, 23822, 23823, 23824,
-    23825, 23826, 23827, 23828, 23831, 23832, 23833, 23834, 23835, 23836, 23837, 23838, 23839, 23840, 23841, 23842,
-    23843, 23844
-];
-const codePoints = [
-    0x20ac, 0x1e3f, 0x01f9, 0x303e, 0x2ff0, 0x2ff1, 0x2ff2, 0x2ff3, 0x2ff4, 0x2ff5, 0x2ff6, 0x2ff7, 0x2ff8, 0x2ff9, 0x2ffa, 0x2ffb,
-    0x2e81, 0x2e84, 0x3473, 0x3447, 0x2e88, 0x2e8b, 0x359e, 0x361a, 0x360e, 0x2e8c, 0x2e97, 0x396e, 0x3918, 0x39cf, 0x39df, 0x3a73,
-    0x39d0, 0x3b4e, 0x3c6e, 0x3ce0, 0x2ea7, 0x2eaa, 0x4056, 0x415f, 0x2eae, 0x4337, 0x2eb3, 0x2eb6, 0x2eb7, 0x43b1, 0x43ac, 0x2ebb,
-    0x43dd, 0x44d6, 0x4661, 0x464c, 0x4723, 0x4729, 0x477c, 0x478d, 0x2eca, 0x4947, 0x497a, 0x497d, 0x4982, 0x4983, 0x4985, 0x4986,
-    0x499f, 0x499b, 0x49b7, 0x49b6, 0x4ca3, 0x4c9f, 0x4ca0, 0x4ca1, 0x4c77, 0x4ca2, 0x4d13, 0x4d14, 0x4d15, 0x4d16, 0x4d17, 0x4d18,
-    0x4d19, 0x4dae
-];
-
-for (let i = 0; i < gbkPointers.length; i++) {
-    const pointer = gbkPointers[i];
-    test(function() {
-        const lead = pointer / 190 + 0x81;
-        const trail = pointer % 190;
-        const offset = trail < 0x3F ? 0x40 : 0x41;
-        const encoded = [lead, trail + offset];
-        const decoded = new TextDecoder("GBK").decode(new Uint8Array(encoded)).charCodeAt(0);
-        assert_equals(decoded, codePoints[i]);
-    }, "gbk pointer: " + pointer)
-}
-</script>
diff --git a/test/fixtures/wpt/encoding/single-byte-decoder.html b/test/fixtures/wpt/encoding/single-byte-decoder.html
deleted file mode 100644
index 70d8fb73eadb81..00000000000000
--- a/test/fixtures/wpt/encoding/single-byte-decoder.html
+++ /dev/null
@@ -1,113 +0,0 @@
-<!doctype html>
-<meta name=timeout content=long>
-<meta name="variant" content="?XMLHttpRequest">
-<meta name="variant" content="?TextDecoder">
-<meta name="variant" content="?document">
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<script src=resources/encodings.js></script>
-<div id=log></div>
-<script>
-
- var singleByteEncodings = encodings_table.filter(function(group) {
-   return group.heading === "Legacy single-byte encodings";
- })[0].encodings,
- // https://encoding.spec.whatwg.org/indexes.json
-     singleByteIndexes = {
-   "IBM866":[1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,9617,9618,9619,9474,9508,9569,9570,9558,9557,9571,9553,9559,9565,9564,9563,9488,9492,9524,9516,9500,9472,9532,9566,9567,9562,9556,9577,9574,9568,9552,9580,9575,9576,9572,9573,9561,9560,9554,9555,9579,9578,9496,9484,9608,9604,9612,9616,9600,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,1103,1025,1105,1028,1108,1031,1111,1038,1118,176,8729,183,8730,8470,164,9632,160],
-   "ISO-8859-2":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,260,728,321,164,317,346,167,168,352,350,356,377,173,381,379,176,261,731,322,180,318,347,711,184,353,351,357,378,733,382,380,340,193,194,258,196,313,262,199,268,201,280,203,282,205,206,270,272,323,327,211,212,336,214,215,344,366,218,368,220,221,354,223,341,225,226,259,228,314,263,231,269,233,281,235,283,237,238,271,273,324,328,243,244,337,246,247,345,367,250,369,252,253,355,729],
-   "ISO-8859-3":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,294,728,163,164,null,292,167,168,304,350,286,308,173,null,379,176,295,178,179,180,181,293,183,184,305,351,287,309,189,null,380,192,193,194,null,196,266,264,199,200,201,202,203,204,205,206,207,null,209,210,211,212,288,214,215,284,217,218,219,220,364,348,223,224,225,226,null,228,267,265,231,232,233,234,235,236,237,238,239,null,241,242,243,244,289,246,247,285,249,250,251,252,365,349,729],
-   "ISO-8859-4":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,260,312,342,164,296,315,167,168,352,274,290,358,173,381,175,176,261,731,343,180,297,316,711,184,353,275,291,359,330,382,331,256,193,194,195,196,197,198,302,268,201,280,203,278,205,206,298,272,325,332,310,212,213,214,215,216,370,218,219,220,360,362,223,257,225,226,227,228,229,230,303,269,233,281,235,279,237,238,299,273,326,333,311,244,245,246,247,248,371,250,251,252,361,363,729],
-   "ISO-8859-5":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,1025,1026,1027,1028,1029,1030,1031,1032,1033,1034,1035,1036,173,1038,1039,1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,1103,8470,1105,1106,1107,1108,1109,1110,1111,1112,1113,1114,1115,1116,167,1118,1119],
-   "ISO-8859-6":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,null,null,null,164,null,null,null,null,null,null,null,1548,173,null,null,null,null,null,null,null,null,null,null,null,null,null,1563,null,null,null,1567,null,1569,1570,1571,1572,1573,1574,1575,1576,1577,1578,1579,1580,1581,1582,1583,1584,1585,1586,1587,1588,1589,1590,1591,1592,1593,1594,null,null,null,null,null,1600,1601,1602,1603,1604,1605,1606,1607,1608,1609,1610,1611,1612,1613,1614,1615,1616,1617,1618,null,null,null,null,null,null,null,null,null,null,null,null,null],
-   "ISO-8859-7":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,8216,8217,163,8364,8367,166,167,168,169,890,171,172,173,null,8213,176,177,178,179,900,901,902,183,904,905,906,187,908,189,910,911,912,913,914,915,916,917,918,919,920,921,922,923,924,925,926,927,928,929,null,931,932,933,934,935,936,937,938,939,940,941,942,943,944,945,946,947,948,949,950,951,952,953,954,955,956,957,958,959,960,961,962,963,964,965,966,967,968,969,970,971,972,973,974,null],
-   "ISO-8859-8":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,null,162,163,164,165,166,167,168,169,215,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,247,187,188,189,190,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,8215,1488,1489,1490,1491,1492,1493,1494,1495,1496,1497,1498,1499,1500,1501,1502,1503,1504,1505,1506,1507,1508,1509,1510,1511,1512,1513,1514,null,null,8206,8207,null],
-   "ISO-8859-10":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,260,274,290,298,296,310,167,315,272,352,358,381,173,362,330,176,261,275,291,299,297,311,183,316,273,353,359,382,8213,363,331,256,193,194,195,196,197,198,302,268,201,280,203,278,205,206,207,208,325,332,211,212,213,214,360,216,370,218,219,220,221,222,223,257,225,226,227,228,229,230,303,269,233,281,235,279,237,238,239,240,326,333,243,244,245,246,361,248,371,250,251,252,253,254,312],
-   "ISO-8859-13":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,8221,162,163,164,8222,166,167,216,169,342,171,172,173,174,198,176,177,178,179,8220,181,182,183,248,185,343,187,188,189,190,230,260,302,256,262,196,197,280,274,268,201,377,278,290,310,298,315,352,323,325,211,332,213,214,215,370,321,346,362,220,379,381,223,261,303,257,263,228,229,281,275,269,233,378,279,291,311,299,316,353,324,326,243,333,245,246,247,371,322,347,363,252,380,382,8217],
-   "ISO-8859-14":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,7682,7683,163,266,267,7690,167,7808,169,7810,7691,7922,173,174,376,7710,7711,288,289,7744,7745,182,7766,7809,7767,7811,7776,7923,7812,7813,7777,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,372,209,210,211,212,213,214,7786,216,217,218,219,220,221,374,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,373,241,242,243,244,245,246,7787,248,249,250,251,252,253,375,255],
-   "ISO-8859-15":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,8364,165,352,167,353,169,170,171,172,173,174,175,176,177,178,179,381,181,182,183,382,185,186,187,338,339,376,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255],
-   "ISO-8859-16":[128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,260,261,321,8364,8222,352,167,353,169,536,171,377,173,378,379,176,177,268,322,381,8221,182,183,382,269,537,187,338,339,376,380,192,193,194,258,196,262,198,199,200,201,202,203,204,205,206,207,272,323,210,211,212,336,214,346,368,217,218,219,220,280,538,223,224,225,226,259,228,263,230,231,232,233,234,235,236,237,238,239,273,324,242,243,244,337,246,347,369,249,250,251,252,281,539,255],
-   "KOI8-R":[9472,9474,9484,9488,9492,9496,9500,9508,9516,9524,9532,9600,9604,9608,9612,9616,9617,9618,9619,8992,9632,8729,8730,8776,8804,8805,160,8993,176,178,183,247,9552,9553,9554,1105,9555,9556,9557,9558,9559,9560,9561,9562,9563,9564,9565,9566,9567,9568,9569,1025,9570,9571,9572,9573,9574,9575,9576,9577,9578,9579,9580,169,1102,1072,1073,1094,1076,1077,1092,1075,1093,1080,1081,1082,1083,1084,1085,1086,1087,1103,1088,1089,1090,1091,1078,1074,1100,1099,1079,1096,1101,1097,1095,1098,1070,1040,1041,1062,1044,1045,1060,1043,1061,1048,1049,1050,1051,1052,1053,1054,1055,1071,1056,1057,1058,1059,1046,1042,1068,1067,1047,1064,1069,1065,1063,1066],
-   "KOI8-U":[9472,9474,9484,9488,9492,9496,9500,9508,9516,9524,9532,9600,9604,9608,9612,9616,9617,9618,9619,8992,9632,8729,8730,8776,8804,8805,160,8993,176,178,183,247,9552,9553,9554,1105,1108,9556,1110,1111,9559,9560,9561,9562,9563,1169,1118,9566,9567,9568,9569,1025,1028,9571,1030,1031,9574,9575,9576,9577,9578,1168,1038,169,1102,1072,1073,1094,1076,1077,1092,1075,1093,1080,1081,1082,1083,1084,1085,1086,1087,1103,1088,1089,1090,1091,1078,1074,1100,1099,1079,1096,1101,1097,1095,1098,1070,1040,1041,1062,1044,1045,1060,1043,1061,1048,1049,1050,1051,1052,1053,1054,1055,1071,1056,1057,1058,1059,1046,1042,1068,1067,1047,1064,1069,1065,1063,1066],
-   "macintosh":[196,197,199,201,209,214,220,225,224,226,228,227,229,231,233,232,234,235,237,236,238,239,241,243,242,244,246,245,250,249,251,252,8224,176,162,163,167,8226,182,223,174,169,8482,180,168,8800,198,216,8734,177,8804,8805,165,181,8706,8721,8719,960,8747,170,186,937,230,248,191,161,172,8730,402,8776,8710,171,187,8230,160,192,195,213,338,339,8211,8212,8220,8221,8216,8217,247,9674,255,376,8260,8364,8249,8250,64257,64258,8225,183,8218,8222,8240,194,202,193,203,200,205,206,207,204,211,212,63743,210,218,219,217,305,710,732,175,728,729,730,184,733,731,711],
-   "windows-874":[8364,129,130,131,132,8230,134,135,136,137,138,139,140,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,152,153,154,155,156,157,158,159,160,3585,3586,3587,3588,3589,3590,3591,3592,3593,3594,3595,3596,3597,3598,3599,3600,3601,3602,3603,3604,3605,3606,3607,3608,3609,3610,3611,3612,3613,3614,3615,3616,3617,3618,3619,3620,3621,3622,3623,3624,3625,3626,3627,3628,3629,3630,3631,3632,3633,3634,3635,3636,3637,3638,3639,3640,3641,3642,null,null,null,null,3647,3648,3649,3650,3651,3652,3653,3654,3655,3656,3657,3658,3659,3660,3661,3662,3663,3664,3665,3666,3667,3668,3669,3670,3671,3672,3673,3674,3675,null,null,null,null],
-   "windows-1250":[8364,129,8218,131,8222,8230,8224,8225,136,8240,352,8249,346,356,381,377,144,8216,8217,8220,8221,8226,8211,8212,152,8482,353,8250,347,357,382,378,160,711,728,321,164,260,166,167,168,169,350,171,172,173,174,379,176,177,731,322,180,181,182,183,184,261,351,187,317,733,318,380,340,193,194,258,196,313,262,199,268,201,280,203,282,205,206,270,272,323,327,211,212,336,214,215,344,366,218,368,220,221,354,223,341,225,226,259,228,314,263,231,269,233,281,235,283,237,238,271,273,324,328,243,244,337,246,247,345,367,250,369,252,253,355,729],
-   "windows-1251":[1026,1027,8218,1107,8222,8230,8224,8225,8364,8240,1033,8249,1034,1036,1035,1039,1106,8216,8217,8220,8221,8226,8211,8212,152,8482,1113,8250,1114,1116,1115,1119,160,1038,1118,1032,164,1168,166,167,1025,169,1028,171,172,173,174,1031,176,177,1030,1110,1169,181,182,183,1105,8470,1108,187,1112,1029,1109,1111,1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,1103],
-   "windows-1252":[8364,129,8218,402,8222,8230,8224,8225,710,8240,352,8249,338,141,381,143,144,8216,8217,8220,8221,8226,8211,8212,732,8482,353,8250,339,157,382,376,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255],
-   "windows-1253":[8364,129,8218,402,8222,8230,8224,8225,136,8240,138,8249,140,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,152,8482,154,8250,156,157,158,159,160,901,902,163,164,165,166,167,168,169,null,171,172,173,174,8213,176,177,178,179,900,181,182,183,904,905,906,187,908,189,910,911,912,913,914,915,916,917,918,919,920,921,922,923,924,925,926,927,928,929,null,931,932,933,934,935,936,937,938,939,940,941,942,943,944,945,946,947,948,949,950,951,952,953,954,955,956,957,958,959,960,961,962,963,964,965,966,967,968,969,970,971,972,973,974,null],
-   "windows-1254":[8364,129,8218,402,8222,8230,8224,8225,710,8240,352,8249,338,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,732,8482,353,8250,339,157,158,376,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,286,209,210,211,212,213,214,215,216,217,218,219,220,304,350,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,287,241,242,243,244,245,246,247,248,249,250,251,252,305,351,255],
-   "windows-1255":[8364,129,8218,402,8222,8230,8224,8225,710,8240,138,8249,140,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,732,8482,154,8250,156,157,158,159,160,161,162,163,8362,165,166,167,168,169,215,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,247,187,188,189,190,191,1456,1457,1458,1459,1460,1461,1462,1463,1464,1465,1466,1467,1468,1469,1470,1471,1472,1473,1474,1475,1520,1521,1522,1523,1524,null,null,null,null,null,null,null,1488,1489,1490,1491,1492,1493,1494,1495,1496,1497,1498,1499,1500,1501,1502,1503,1504,1505,1506,1507,1508,1509,1510,1511,1512,1513,1514,null,null,8206,8207,null],
-   "windows-1256":[8364,1662,8218,402,8222,8230,8224,8225,710,8240,1657,8249,338,1670,1688,1672,1711,8216,8217,8220,8221,8226,8211,8212,1705,8482,1681,8250,339,8204,8205,1722,160,1548,162,163,164,165,166,167,168,169,1726,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,1563,187,188,189,190,1567,1729,1569,1570,1571,1572,1573,1574,1575,1576,1577,1578,1579,1580,1581,1582,1583,1584,1585,1586,1587,1588,1589,1590,215,1591,1592,1593,1594,1600,1601,1602,1603,224,1604,226,1605,1606,1607,1608,231,232,233,234,235,1609,1610,238,239,1611,1612,1613,1614,244,1615,1616,247,1617,249,1618,251,252,8206,8207,1746],
-   "windows-1257":[8364,129,8218,131,8222,8230,8224,8225,136,8240,138,8249,140,168,711,184,144,8216,8217,8220,8221,8226,8211,8212,152,8482,154,8250,156,175,731,159,160,null,162,163,164,null,166,167,216,169,342,171,172,173,174,198,176,177,178,179,180,181,182,183,248,185,343,187,188,189,190,230,260,302,256,262,196,197,280,274,268,201,377,278,290,310,298,315,352,323,325,211,332,213,214,215,370,321,346,362,220,379,381,223,261,303,257,263,228,229,281,275,269,233,378,279,291,311,299,316,353,324,326,243,333,245,246,247,371,322,347,363,252,380,382,729],
-   "windows-1258":[8364,129,8218,402,8222,8230,8224,8225,710,8240,138,8249,338,141,142,143,144,8216,8217,8220,8221,8226,8211,8212,732,8482,154,8250,339,157,158,376,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,258,196,197,198,199,200,201,202,203,768,205,206,207,272,209,777,211,212,416,214,215,216,217,218,219,220,431,771,223,224,225,226,259,228,229,230,231,232,233,234,235,769,237,238,239,273,241,803,243,244,417,246,247,248,249,250,251,252,432,8363,255],
-   "x-mac-cyrillic":[1040,1041,1042,1043,1044,1045,1046,1047,1048,1049,1050,1051,1052,1053,1054,1055,1056,1057,1058,1059,1060,1061,1062,1063,1064,1065,1066,1067,1068,1069,1070,1071,8224,176,1168,163,167,8226,182,1030,174,169,8482,1026,1106,8800,1027,1107,8734,177,8804,8805,1110,181,1169,1032,1028,1108,1031,1111,1033,1113,1034,1114,1112,1029,172,8730,402,8776,8710,171,187,8230,160,1035,1115,1036,1116,1109,8211,8212,8220,8221,8216,8217,247,8222,1038,1118,1039,1119,8470,1025,1105,1103,1072,1073,1074,1075,1076,1077,1078,1079,1080,1081,1082,1083,1084,1085,1086,1087,1088,1089,1090,1091,1092,1093,1094,1095,1096,1097,1098,1099,1100,1101,1102,8364]
- }
-
- // For TextDecoder tests
- var buffer = new ArrayBuffer(255),
-     view = new Uint8Array(buffer)
- for(var i = 0, l = view.byteLength; i < l; i++) {
-   view[i] = i
- }
-
- // For XMLHttpRequest and TextDecoder tests
- function assert_decode(data, encoding) {
-   if(encoding == "ISO-8859-8-I") {
-     encoding = "ISO-8859-8"
-   }
-   for(var i = 0, l = data.length; i < l; i++) {
-     var cp = data.charCodeAt(i),
-         expectedCp = (i < 0x80) ? i : singleByteIndexes[encoding][i-0x80]
-     if(expectedCp == null) {
-       expectedCp = 0xFFFD
-     }
-     assert_equals(cp, expectedCp, encoding + ":" + i)
-   }
- }
-
- var subsetTest = "";
- if (location.search) {
-   subsetTest = location.search.substr(1);
- }
-
- // Setting up all the tests
- for(var i = 0, l = singleByteEncodings.length; i < l; i++) {
-   var encoding = singleByteEncodings[i]
-   for(var ii = 0, ll = encoding.labels.length; ii < ll; ii++) {
-     var label = encoding.labels[ii]
-
-     if (subsetTest == "XMLHttpRequest" || !subsetTest) {
-       async_test(function(t) {
-         var xhr = new XMLHttpRequest,
-             name = encoding.name // need scoped variable
-         xhr.open("GET", "resources/single-byte-raw.py?label=" + label)
-         xhr.send(null)
-         xhr.onload = t.step_func_done(function() { assert_decode(xhr.responseText, name) })
-       }, encoding.name + ": " + label + " (XMLHttpRequest)")
-     }
-
-     if (subsetTest == "TextDecoder" || !subsetTest) {
-       test(function() {
-         var d = new TextDecoder(label),
-             data = d.decode(view)
-         assert_equals(d.encoding, encoding.name.toLowerCase()) // ASCII names only, so safe
-         assert_decode(data, encoding.name)
-       }, encoding.name + ": " + label + " (TextDecoder)")
-     }
-
-     if (subsetTest == "document" || !subsetTest) {
-       async_test(function(t) {
-         var frame = document.createElement("iframe"),
-             name = encoding.name;
-         frame.src = "resources/text-plain-charset.py?label=" + label
-         frame.onload = t.step_func_done(function() {
-           assert_equals(frame.contentDocument.characterSet, name)
-           assert_equals(frame.contentDocument.inputEncoding, name)
-         })
-         t.add_cleanup(function() { document.body.removeChild(frame) })
-         document.body.appendChild(frame)
-       }, encoding.name + ": " + label + " (document.characterSet and document.inputEncoding)")
-     }
-   }
- }
-</script>
diff --git a/test/fixtures/wpt/html/webappapis/timers/negative-setinterval.html b/test/fixtures/wpt/html/webappapis/timers/negative-setinterval.html
deleted file mode 100644
index 663872cd1f3850..00000000000000
--- a/test/fixtures/wpt/html/webappapis/timers/negative-setinterval.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!doctype html>
-<title>Negative timeout in setInterval</title>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script>
-setup({ single_test: true });
-var i = 0;
-var interval;
-function next() {
-  i++;
-  if (i === 20) {
-    clearInterval(interval);
-    done();
-  }
-}
-setTimeout(assert_unreached, 1000);
-interval = setInterval(next, -100);
-</script>
diff --git a/test/fixtures/wpt/html/webappapis/timers/negative-settimeout.html b/test/fixtures/wpt/html/webappapis/timers/negative-settimeout.html
deleted file mode 100644
index b59fc8f22984c8..00000000000000
--- a/test/fixtures/wpt/html/webappapis/timers/negative-settimeout.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!doctype html>
-<title>Negative timeout in setTimeout</title>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script>
- setup({ single_test: true });
- setTimeout(done, -100);
- setTimeout(assert_unreached, 10);
-</script>
diff --git a/test/fixtures/wpt/html/webappapis/timers/type-long-setinterval.html b/test/fixtures/wpt/html/webappapis/timers/type-long-setinterval.html
deleted file mode 100644
index 7fb81ff29ac3a9..00000000000000
--- a/test/fixtures/wpt/html/webappapis/timers/type-long-setinterval.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!doctype html>
-<title>Type long timeout for setInterval</title>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script>
-setup({ single_test: true });
-var interval;
-function next() {
-  clearInterval(interval);
-  done();
-}
-interval = setInterval(next, Math.pow(2, 32));
-setTimeout(assert_unreached, 100);
-</script>
diff --git a/test/fixtures/wpt/html/webappapis/timers/type-long-settimeout.html b/test/fixtures/wpt/html/webappapis/timers/type-long-settimeout.html
deleted file mode 100644
index 4dc7d17ea5f13f..00000000000000
--- a/test/fixtures/wpt/html/webappapis/timers/type-long-settimeout.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<!doctype html>
-<title>Type long timeout for setTimeout</title>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script>
-setup({ single_test: true });
-setTimeout(done, Math.pow(2, 32));
-setTimeout(assert_unreached, 100);
-</script>
diff --git a/test/fixtures/wpt/resources/.gitignore b/test/fixtures/wpt/resources/.gitignore
deleted file mode 100644
index 04fdeda1cc4ea1..00000000000000
--- a/test/fixtures/wpt/resources/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-ROBIN-TODO.txt
-scratch
-node_modules
diff --git a/test/fixtures/wpt/resources/LICENSE b/test/fixtures/wpt/resources/LICENSE
deleted file mode 100644
index 45896e6be2bd51..00000000000000
--- a/test/fixtures/wpt/resources/LICENSE
+++ /dev/null
@@ -1,30 +0,0 @@
-W3C 3-clause BSD License
-
-http://www.w3.org/Consortium/Legal/2008/03-bsd-license.html
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-* Redistributions of works must retain the original copyright notice,
-  this list of conditions and the following disclaimer.
-
-* Redistributions in binary form must reproduce the original copyright
-  notice, this list of conditions and the following disclaimer in the
-  documentation and/or other materials provided with the distribution.
-
-* Neither the name of the W3C nor the names of its contributors may be
-  used to endorse or promote products derived from this work without
-  specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/test/fixtures/wpt/resources/check-layout-th.js b/test/fixtures/wpt/resources/check-layout-th.js
index 9cd8abc938d9fb..f14ca3246b8ea2 100644
--- a/test/fixtures/wpt/resources/check-layout-th.js
+++ b/test/fixtures/wpt/resources/check-layout-th.js
@@ -26,7 +26,11 @@ function assert_tolerance(actual, expected, message)
 }
 
 function checkDataKeys(node) {
+  // The purpose of this list of data-* attributes is simply to ensure typos
+  // in tests are caught. It is therefore "ok" to add to this list for
+  // specific tests.
     var validData = new Set([
+        "data-anchor-polyfill",
         "data-expected-width",
         "data-expected-height",
         "data-offset-x",
diff --git a/test/fixtures/wpt/resources/declarative-shadow-dom-polyfill.js b/test/fixtures/wpt/resources/declarative-shadow-dom-polyfill.js
new file mode 100644
index 00000000000000..8ab08b0294c297
--- /dev/null
+++ b/test/fixtures/wpt/resources/declarative-shadow-dom-polyfill.js
@@ -0,0 +1,24 @@
+/*
+ * Polyfill for attaching shadow trees for declarative Shadow DOM for
+ * implementations that do not support declarative Shadow DOM.
+ *
+ * Note: this polyfill will feature-detect the native feature, and do nothing
+ *       if supported.
+ *
+ * See: https://github.com/whatwg/html/pull/5465
+ *
+ * root: The root of the subtree in which to upgrade shadow roots
+ *
+ */
+
+function polyfill_declarative_shadow_dom(root) {
+  if (HTMLTemplateElement.prototype.hasOwnProperty('shadowRootMode'))
+    return;
+  root.querySelectorAll("template[shadowrootmode]").forEach(template => {
+    const mode = template.getAttribute("shadowrootmode");
+    const shadowRoot = template.parentNode.attachShadow({ mode });
+    shadowRoot.appendChild(template.content);
+    template.remove();
+    polyfill_declarative_shadow_dom(shadowRoot);
+  });
+}
diff --git a/test/fixtures/wpt/resources/idlharness-shadowrealm.js b/test/fixtures/wpt/resources/idlharness-shadowrealm.js
index 05c4a1affc8699..9484ca6f512ad0 100644
--- a/test/fixtures/wpt/resources/idlharness-shadowrealm.js
+++ b/test/fixtures/wpt/resources/idlharness-shadowrealm.js
@@ -21,11 +21,6 @@ function fetch_text(url) {
  *      dependency (i.e. have already been seen).
  */
 function idl_test_shadowrealm(srcs, deps) {
-    const script_urls = [
-        "/resources/testharness.js",
-        "/resources/WebIDLParser.js",
-        "/resources/idlharness.js",
-    ];
     promise_setup(async t => {
         const realm = new ShadowRealm();
         // https://github.com/web-platform-tests/wpt/issues/31996
@@ -38,44 +33,29 @@ function idl_test_shadowrealm(srcs, deps) {
                 isShadowRealm: function() { return true; },
             }; undefined;
         `);
-
-        const ss = await Promise.all(script_urls.map(url => fetch_text(url)));
-        for (const s of ss) {
-            realm.evaluate(s);
-        }
         const specs = await Promise.all(srcs.concat(deps).map(spec => {
             return fetch_text("/interfaces/" + spec + ".idl");
         }));
         const idls = JSON.stringify(specs);
-
-        const results = JSON.parse(await new Promise(
-          realm.evaluate(`(resolve,reject) => {
-              const idls = ${idls};
-              add_completion_callback(function (tests, harness_status, asserts_run) {
-                resolve(JSON.stringify(tests));
-              });
-
-              // Without the wrapping test, testharness.js will think it's done after it has run
-              // the first idlharness test.
-              test(() => {
-                  const idl_array = new IdlArray();
-                  for (let i = 0; i < ${srcs.length}; i++) {
-                      idl_array.add_idls(idls[i]);
-                  }
-                  for (let i = ${srcs.length}; i < ${srcs.length + deps.length}; i++) {
-                      idl_array.add_dependency_idls(idls[i]);
-                  }
-                  idl_array.test();
-              }, "setup");
-          }`)
-        ));
-
-        // We ran the tests in the ShadowRealm and gathered the results. Now treat them as if
-        // we'd run them directly here, so we can see them.
-        for (const {name, status, message} of results) {
-            // TODO: make this an API in testharness.js - needs RFC?
-            promise_test(t => {t.set_status(status, message); t.phase = t.phases.HAS_RESULT; t.done()}, name);
-        }
-    }, "outer setup");
+        await new Promise(
+            realm.evaluate(`(resolve,reject) => {
+                (async () => {
+                    await import("/resources/testharness.js");
+                    await import("/resources/WebIDLParser.js");
+                    await import("/resources/idlharness.js");
+                    const idls = ${idls};
+                    const idl_array = new IdlArray();
+                    for (let i = 0; i < ${srcs.length}; i++) {
+                        idl_array.add_idls(idls[i]);
+                    }
+                    for (let i = ${srcs.length}; i < ${srcs.length + deps.length}; i++) {
+                        idl_array.add_dependency_idls(idls[i]);
+                    }
+                    idl_array.test();
+                })().then(resolve, (e) => reject(e.toString()));
+            }`)
+        );
+        await fetch_tests_from_shadow_realm(realm);
+    });
 }
 // vim: set expandtab shiftwidth=4 tabstop=4 foldmarker=@{,@} foldmethod=marker:
diff --git a/test/fixtures/wpt/resources/idlharness.js b/test/fixtures/wpt/resources/idlharness.js
index d2fb0366c8022a..46aa11e5ca123c 100644
--- a/test/fixtures/wpt/resources/idlharness.js
+++ b/test/fixtures/wpt/resources/idlharness.js
@@ -2433,44 +2433,6 @@ IdlInterface.prototype.test_to_json_operation = function(desc, memberHolderObjec
     }
 };
 
-IdlInterface.prototype.test_member_iterable = function(member)
-{
-    subsetTestByKey(this.name, test, function()
-    {
-        var isPairIterator = member.idlType.length === 2;
-        var proto = this.get_interface_object().prototype;
-        var iteratorDesc = Object.getOwnPropertyDescriptor(proto, Symbol.iterator);
-
-        assert_true(iteratorDesc.writable, "@@iterator property should be writable");
-        assert_true(iteratorDesc.configurable, "@@iterator property should be configurable");
-        assert_false(iteratorDesc.enumerable, "@@iterator property should not be enumerable");
-        assert_equals(typeof iteratorDesc.value, "function", "@@iterator property should be a function");
-        assert_equals(iteratorDesc.value.length, 0, "@@iterator function object length should be 0");
-        assert_equals(iteratorDesc.value.name, isPairIterator ? "entries" : "values", "@@iterator function object should have the right name");
-
-        if (isPairIterator) {
-            assert_equals(proto["entries"], proto[Symbol.iterator], "entries method should be the same as @@iterator method");
-            [
-                ["entries", 0],
-                ["keys", 0],
-                ["values", 0],
-                ["forEach", 1]
-            ].forEach(([property, length]) => {
-                var desc = Object.getOwnPropertyDescriptor(proto, property);
-                assert_equals(typeof desc.value, "function", property + " property should be a function");
-                assert_equals(desc.value.length, length, property + " function object should have the right length");
-                assert_equals(desc.value.name, property, property + " function object should have the right name");
-            });
-        } else {
-            assert_equals(proto[Symbol.iterator], Array.prototype[Symbol.iterator], "@@iterator method should be the same as Array prototype's");
-            ["entries", "keys", "values", "forEach", Symbol.iterator].forEach(property => {
-                var propertyName = property === Symbol.iterator ? "@@iterator" : property;
-                assert_equals(proto[property], Array.prototype[property], propertyName + " method should be the same as Array prototype's");
-            });
-        }
-    }.bind(this), this.name + " interface: iterable<" + member.idlType.map(function(t) { return t.idlType; }).join(", ") + ">");
-};
-
 IdlInterface.prototype.test_member_maplike = function(member) {
     subsetTestByKey(this.name, test, () => {
         const proto = this.get_interface_object().prototype;
@@ -2487,14 +2449,14 @@ IdlInterface.prototype.test_member_maplike = function(member) {
             methods.push(
                 ["set", 2],
                 ["delete", 1],
-                ["clear", 1]
+                ["clear", 0]
             );
         }
 
         for (const [name, length] of methods) {
             const desc = Object.getOwnPropertyDescriptor(proto, name);
             assert_equals(typeof desc.value, "function", `${name} should be a function`);
-            assert_equals(desc.enumerable, false, `${name} enumerable`);
+            assert_equals(desc.enumerable, true, `${name} enumerable`);
             assert_equals(desc.configurable, true, `${name} configurable`);
             assert_equals(desc.writable, true, `${name} writable`);
             assert_equals(desc.value.length, length, `${name} function object length should be ${length}`);
@@ -2510,10 +2472,10 @@ IdlInterface.prototype.test_member_maplike = function(member) {
         const sizeDesc = Object.getOwnPropertyDescriptor(proto, "size");
         assert_equals(typeof sizeDesc.get, "function", `size getter should be a function`);
         assert_equals(sizeDesc.set, undefined, `size should not have a setter`);
-        assert_equals(sizeDesc.enumerable, false, `size enumerable`);
+        assert_equals(sizeDesc.enumerable, true, `size enumerable`);
         assert_equals(sizeDesc.configurable, true, `size configurable`);
-        assert_equals(sizeDesc.get.length, 0, `size getter length should have the right length`);
-        assert_equals(sizeDesc.get.name, "get size", `size getter have the right name`);
+        assert_equals(sizeDesc.get.length, 0, `size getter length`);
+        assert_equals(sizeDesc.get.name, "get size", `size getter name`);
     }, `${this.name} interface: maplike<${member.idlType.map(t => t.idlType).join(", ")}>`);
 };
 
@@ -2532,14 +2494,14 @@ IdlInterface.prototype.test_member_setlike = function(member) {
             methods.push(
                 ["add", 1],
                 ["delete", 1],
-                ["clear", 1]
+                ["clear", 0]
             );
         }
 
         for (const [name, length] of methods) {
             const desc = Object.getOwnPropertyDescriptor(proto, name);
             assert_equals(typeof desc.value, "function", `${name} should be a function`);
-            assert_equals(desc.enumerable, false, `${name} enumerable`);
+            assert_equals(desc.enumerable, true, `${name} enumerable`);
             assert_equals(desc.configurable, true, `${name} configurable`);
             assert_equals(desc.writable, true, `${name} writable`);
             assert_equals(desc.value.length, length, `${name} function object length should be ${length}`);
@@ -2555,42 +2517,92 @@ IdlInterface.prototype.test_member_setlike = function(member) {
         const sizeDesc = Object.getOwnPropertyDescriptor(proto, "size");
         assert_equals(typeof sizeDesc.get, "function", `size getter should be a function`);
         assert_equals(sizeDesc.set, undefined, `size should not have a setter`);
-        assert_equals(sizeDesc.enumerable, false, `size enumerable`);
+        assert_equals(sizeDesc.enumerable, true, `size enumerable`);
         assert_equals(sizeDesc.configurable, true, `size configurable`);
-        assert_equals(sizeDesc.get.length, 0, `size getter length should have the right length`);
-        assert_equals(sizeDesc.get.name, "size", `size getter have the right name`);
+        assert_equals(sizeDesc.get.length, 0, `size getter length`);
+        assert_equals(sizeDesc.get.name, "get size", `size getter name`);
     }, `${this.name} interface: setlike<${member.idlType.map(t => t.idlType).join(", ")}>`);
 };
 
-IdlInterface.prototype.test_member_async_iterable = function(member)
-{
-    subsetTestByKey(this.name, test, function()
-    {
-        var isPairIterator = member.idlType.length === 2;
-        var proto = this.get_interface_object().prototype;
-        var iteratorDesc = Object.getOwnPropertyDescriptor(proto, Symbol.asyncIterator);
+IdlInterface.prototype.test_member_iterable = function(member) {
+    subsetTestByKey(this.name, test, () => {
+        const isPairIterator = member.idlType.length === 2;
+        const proto = this.get_interface_object().prototype;
 
-        assert_true(iteratorDesc.writable, "@@asyncIterator property should be writable");
-        assert_true(iteratorDesc.configurable, "@@asyncIterator property should be configurable");
-        assert_false(iteratorDesc.enumerable, "@@asyncIterator property should not be enumerable");
-        assert_equals(typeof iteratorDesc.value, "function", "@@asyncIterator property should be a function");
-        assert_equals(iteratorDesc.value.length, 0, "@@asyncIterator function object length should be 0");
-        assert_equals(iteratorDesc.value.name, isPairIterator ? "entries" : "values", "@@asyncIterator function object should have the right name");
+        const methods = [
+            ["entries", 0],
+            ["keys", 0],
+            ["values", 0],
+            ["forEach", 1]
+        ];
+
+        for (const [name, length] of methods) {
+            const desc = Object.getOwnPropertyDescriptor(proto, name);
+            assert_equals(typeof desc.value, "function", `${name} should be a function`);
+            assert_equals(desc.enumerable, true, `${name} enumerable`);
+            assert_equals(desc.configurable, true, `${name} configurable`);
+            assert_equals(desc.writable, true, `${name} writable`);
+            assert_equals(desc.value.length, length, `${name} function object length should be ${length}`);
+            assert_equals(desc.value.name, name, `${name} function object should have the right name`);
+
+            if (!isPairIterator) {
+                assert_equals(desc.value, Array.prototype[name], `${name} equality with Array.prototype version`);
+            }
+        }
+
+        const iteratorDesc = Object.getOwnPropertyDescriptor(proto, Symbol.iterator);
+        assert_equals(iteratorDesc.enumerable, false, `@@iterator enumerable`);
+        assert_equals(iteratorDesc.configurable, true, `@@iterator configurable`);
+        assert_equals(iteratorDesc.writable, true, `@@iterator writable`);
 
         if (isPairIterator) {
-            assert_equals(proto["entries"], proto[Symbol.asyncIterator], "entries method should be the same as @@asyncIterator method");
-            ["entries", "keys", "values"].forEach(property => {
-                var desc = Object.getOwnPropertyDescriptor(proto, property);
-                assert_equals(typeof desc.value, "function", property + " property should be a function");
-                assert_equals(desc.value.length, 0, property + " function object length should be 0");
-                assert_equals(desc.value.name, property, property + " function object should have the right name");
-            });
+            assert_equals(iteratorDesc.value, proto.entries, `@@iterator equality with entries`);
         } else {
-            assert_equals(proto["values"], proto[Symbol.asyncIterator], "values method should be the same as @@asyncIterator method");
-            assert_false("entries" in proto, "should not have an entries method");
-            assert_false("keys" in proto, "should not have a keys method");
+            assert_equals(iteratorDesc.value, Array.prototype[Symbol.iterator], `@@iterator equality with Array.prototype version`);
         }
-    }.bind(this), this.name + " interface: async iterable<" + member.idlType.map(function(t) { return t.idlType; }).join(", ") + ">");
+    }, `${this.name} interface: iterable<${member.idlType.map(t => t.idlType).join(", ")}>`);
+};
+
+IdlInterface.prototype.test_member_async_iterable = function(member) {
+    subsetTestByKey(this.name, test, () => {
+        const isPairIterator = member.idlType.length === 2;
+        const proto = this.get_interface_object().prototype;
+
+        // Note that although the spec allows arguments, which will be passed to the @@asyncIterator
+        // method (which is either values or entries), those arguments must always be optional. So
+        // length of 0 is still correct for values and entries.
+        const methods = [
+            ["values", 0],
+        ];
+
+        if (isPairIterator) {
+            methods.push(
+                ["entries", 0],
+                ["keys", 0]
+            );
+        }
+
+        for (const [name, length] of methods) {
+            const desc = Object.getOwnPropertyDescriptor(proto, name);
+            assert_equals(typeof desc.value, "function", `${name} should be a function`);
+            assert_equals(desc.enumerable, true, `${name} enumerable`);
+            assert_equals(desc.configurable, true, `${name} configurable`);
+            assert_equals(desc.writable, true, `${name} writable`);
+            assert_equals(desc.value.length, length, `${name} function object length should be ${length}`);
+            assert_equals(desc.value.name, name, `${name} function object should have the right name`);
+        }
+
+        const iteratorDesc = Object.getOwnPropertyDescriptor(proto, Symbol.asyncIterator);
+        assert_equals(iteratorDesc.enumerable, false, `@@iterator enumerable`);
+        assert_equals(iteratorDesc.configurable, true, `@@iterator configurable`);
+        assert_equals(iteratorDesc.writable, true, `@@iterator writable`);
+
+        if (isPairIterator) {
+            assert_equals(iteratorDesc.value, proto.entries, `@@iterator equality with entries`);
+        } else {
+            assert_equals(iteratorDesc.value, proto.values, `@@iterator equality with values`);
+        }
+    }, `${this.name} interface: async iterable<${member.idlType.map(t => t.idlType).join(", ")}>`);
 };
 
 IdlInterface.prototype.test_member_stringifier = function(member)
@@ -2656,6 +2668,7 @@ IdlInterface.prototype.test_member_stringifier = function(member)
 
 IdlInterface.prototype.test_members = function()
 {
+    var unexposed_members = new Set();
     for (var i = 0; i < this.members.length; i++)
     {
         var member = this.members[i];
@@ -2664,15 +2677,18 @@ IdlInterface.prototype.test_members = function()
         }
 
         if (!exposed_in(exposure_set(member, this.exposureSet))) {
-            subsetTestByKey(this.name, test, function() {
-                // It's not exposed, so we shouldn't find it anywhere.
-                assert_false(member.name in this.get_interface_object(),
-                             "The interface object must not have a property " +
-                             format_value(member.name));
-                assert_false(member.name in this.get_interface_object().prototype,
-                             "The prototype object must not have a property " +
-                             format_value(member.name));
-            }.bind(this), this.name + " interface: member " + member.name);
+            if (!unexposed_members.has(member.name)) {
+                unexposed_members.add(member.name);
+                subsetTestByKey(this.name, test, function() {
+                    // It's not exposed, so we shouldn't find it anywhere.
+                    assert_false(member.name in this.get_interface_object(),
+                                "The interface object must not have a property " +
+                                format_value(member.name));
+                    assert_false(member.name in this.get_interface_object().prototype,
+                                "The prototype object must not have a property " +
+                                format_value(member.name));
+                }.bind(this), this.name + " interface: member " + member.name);
+            }
             continue;
         }
 
@@ -2751,21 +2767,26 @@ IdlInterface.prototype.test_object = function(desc)
         expected_typeof = "object";
     }
 
-    this.test_primary_interface_of(desc, obj, exception, expected_typeof);
+    if (this.is_callback()) {
+        assert_equals(exception, null, "Unexpected exception when evaluating object");
+        assert_equals(typeof obj, expected_typeof, "wrong typeof object");
+    } else {
+        this.test_primary_interface_of(desc, obj, exception, expected_typeof);
 
-    var current_interface = this;
-    while (current_interface)
-    {
-        if (!(current_interface.name in this.array.members))
+        var current_interface = this;
+        while (current_interface)
         {
-            throw new IdlHarnessError("Interface " + current_interface.name + " not found (inherited by " + this.name + ")");
-        }
-        if (current_interface.prevent_multiple_testing && current_interface.already_tested)
-        {
-            return;
+            if (!(current_interface.name in this.array.members))
+            {
+                throw new IdlHarnessError("Interface " + current_interface.name + " not found (inherited by " + this.name + ")");
+            }
+            if (current_interface.prevent_multiple_testing && current_interface.already_tested)
+            {
+                return;
+            }
+            current_interface.test_interface_of(desc, obj, exception, expected_typeof);
+            current_interface = this.array.members[current_interface.base];
         }
-        current_interface.test_interface_of(desc, obj, exception, expected_typeof);
-        current_interface = this.array.members[current_interface.base];
     }
 };
 
@@ -2838,17 +2859,23 @@ IdlInterface.prototype.test_interface_of = function(desc, obj, exception, expect
         return;
     }
 
+    var unexposed_properties = new Set();
     for (var i = 0; i < this.members.length; i++)
     {
         var member = this.members[i];
         if (member.untested) {
             continue;
         }
-        if (!exposed_in(exposure_set(member, this.exposureSet))) {
-            subsetTestByKey(this.name, test, function() {
-                assert_equals(exception, null, "Unexpected exception when evaluating object");
-                assert_false(member.name in obj);
-            }.bind(this), this.name + " interface: " + desc + ' must not have property "' + member.name + '"');
+        if (!exposed_in(exposure_set(member, this.exposureSet)))
+        {
+            if (!unexposed_properties.has(member.name))
+            {
+                unexposed_properties.add(member.name);
+                subsetTestByKey(this.name, test, function() {
+                    assert_equals(exception, null, "Unexpected exception when evaluating object");
+                    assert_false(member.name in obj);
+                }.bind(this), this.name + " interface: " + desc + ' must not have property "' + member.name + '"');
+            }
             continue;
         }
         if (member.type == "attribute" && member.isUnforgeable)
diff --git a/test/fixtures/wpt/resources/testdriver.js b/test/fixtures/wpt/resources/testdriver.js
index 0737e64a50b313..76ae2834fdfb0a 100644
--- a/test/fixtures/wpt/resources/testdriver.js
+++ b/test/fixtures/wpt/resources/testdriver.js
@@ -78,8 +78,8 @@
          * Trigger user interaction in order to grant additional privileges to
          * a provided function.
          *
-         * See `triggered by user activation
-         * <https://html.spec.whatwg.org/#triggered-by-user-activation>`_.
+         * See `Tracking user activation
+         * <https://html.spec.whatwg.org/multipage/interaction.html#tracking-user-activation>`_.
          *
          * @example
          * var mediaElement = document.createElement('video');
@@ -184,6 +184,42 @@
             return window.test_driver_internal.delete_all_cookies(context);
         },
 
+        /**
+         * Get details for all cookies in the current context.
+         * See https://w3c.github.io/webdriver/#get-all-cookies
+         *
+         * @param {WindowProxy} context - Browsing context in which
+         *                                to run the call, or null for the current
+         *                                browsing context.
+         *
+         * @returns {Promise} Returns an array of cookies objects as defined in the spec:
+         *                    https://w3c.github.io/webdriver/#cookies
+         */
+        get_all_cookies: function(context=null) {
+            return window.test_driver_internal.get_all_cookies(context);
+        },
+
+        /**
+         * Get details for a cookie in the current context by name if it exists.
+         * See https://w3c.github.io/webdriver/#get-named-cookie
+         *
+         * @param {String} name - The name of the cookie to get.
+         * @param {WindowProxy} context - Browsing context in which
+         *                                to run the call, or null for the current
+         *                                browsing context.
+         *
+         * @returns {Promise} Returns the matching cookie as defined in the spec:
+         *                    https://w3c.github.io/webdriver/#cookies
+         *                    Rejected if no such cookie exists.
+         */
+         get_named_cookie: async function(name, context=null) {
+            let cookie = await window.test_driver_internal.get_named_cookie(name, context);
+            if (!cookie) {
+                throw new Error("no such cookie");
+            }
+            return cookie;
+        },
+
         /**
          * Send keys to an element.
          *
@@ -362,24 +398,22 @@
          *
          * @example
          * await test_driver.set_permission({ name: "background-fetch" }, "denied");
-         * await test_driver.set_permission({ name: "push", userVisibleOnly: true }, "granted", true);
+         * await test_driver.set_permission({ name: "push", userVisibleOnly: true }, "granted");
          *
-         * @param {Object} descriptor - a `PermissionDescriptor
-         *                              <https://w3c.github.io/permissions/#dictdef-permissiondescriptor>`_
-         *                              object
+         * @param {PermissionDescriptor} descriptor - a `PermissionDescriptor
+         *                              <https://w3c.github.io/permissions/#dom-permissiondescriptor>`_
+         *                              dictionary.
          * @param {String} state - the state of the permission
-         * @param {boolean} one_realm - Optional. Whether the permission applies to only one realm
          * @param {WindowProxy} context - Browsing context in which
          *                                to run the call, or null for the current
          *                                browsing context.
          * @returns {Promise} fulfilled after the permission is set, or rejected if setting the
          *                    permission fails
          */
-        set_permission: function(descriptor, state, one_realm=false, context=null) {
+        set_permission: function(descriptor, state, context=null) {
             let permission_params = {
               descriptor,
               state,
-              oneRealm: one_realm,
             };
             return window.test_driver_internal.set_permission(permission_params, context);
         },
@@ -637,6 +671,14 @@
             return Promise.reject(new Error("unimplemented"));
         },
 
+        get_all_cookies: function(context=null) {
+            return Promise.reject(new Error("unimplemented"));
+        },
+
+        get_named_cookie: function(name, context=null) {
+            return Promise.reject(new Error("unimplemented"));
+        },
+
         send_keys: function(element, keys) {
             if (this.in_automation) {
                 return Promise.reject(new Error('Not implemented'));
diff --git a/test/fixtures/wpt/resources/testharness.css.headers b/test/fixtures/wpt/resources/testharness.css.headers
deleted file mode 100644
index e828b629858d07..00000000000000
--- a/test/fixtures/wpt/resources/testharness.css.headers
+++ /dev/null
@@ -1,2 +0,0 @@
-Content-Type: text/css;charset=utf-8
-Cache-Control: max-age=3600
diff --git a/test/fixtures/wpt/resources/testharness.js b/test/fixtures/wpt/resources/testharness.js
index 9ec328222097e0..112790bb1eeb87 100644
--- a/test/fixtures/wpt/resources/testharness.js
+++ b/test/fixtures/wpt/resources/testharness.js
@@ -494,7 +494,7 @@
     ShellTestEnvironment.prototype.next_default_test_name = function() {
         var suffix = this.name_counter > 0 ? " " + this.name_counter : "";
         this.name_counter++;
-        return "Untitled" + suffix;
+        return get_title() + suffix;
     };
 
     ShellTestEnvironment.prototype.on_new_harness_properties = function() {};
@@ -2246,7 +2246,8 @@
                 ReadOnlyError: 0,
                 VersionError: 0,
                 OperationError: 0,
-                NotAllowedError: 0
+                NotAllowedError: 0,
+                OptOutError: 0
             };
 
             var code_name_map = {};
@@ -2477,6 +2478,10 @@
         this._user_defined_cleanup_count = 0;
         this._done_callbacks = [];
 
+        if (typeof AbortController === "function") {
+            this._abortController = new AbortController();
+        }
+
         // Tests declared following harness completion are likely an indication
         // of a programming error, but they cannot be reported
         // deterministically.
@@ -2953,6 +2958,10 @@
 
         this.phase = this.phases.CLEANING;
 
+        if (this._abortController) {
+            this._abortController.abort("Test cleanup");
+        }
+
         forEach(this.cleanup_callbacks,
                 function(cleanup_callback) {
                     var result;
@@ -3046,6 +3055,16 @@
         test._done_callbacks.length = 0;
     }
 
+    /**
+     * Gives an AbortSignal that will be aborted when the test finishes.
+     */
+    Test.prototype.get_signal = function() {
+        if (!this._abortController) {
+            throw new Error("AbortController is not supported in this browser");
+        }
+        return this._abortController.signal;
+    }
+
     /**
      * A RemoteTest object mirrors a Test object on a remote worker. The
      * associated RemoteWorker updates the RemoteTest object in response to
@@ -3822,7 +3841,9 @@
             return;
         }
 
-        this.pending_remotes.push(this.create_remote_window(remote));
+        var remoteContext = this.create_remote_window(remote);
+        this.pending_remotes.push(remoteContext);
+        return remoteContext.done;
     };
 
     /**
@@ -3837,7 +3858,7 @@
      * @param {Window} window - The window to fetch tests from.
      */
     function fetch_tests_from_window(window) {
-        tests.fetch_tests_from_window(window);
+        return tests.fetch_tests_from_window(window);
     }
     expose(fetch_tests_from_window, 'fetch_tests_from_window');
 
@@ -3871,7 +3892,7 @@
      */
     function begin_shadow_realm_tests(postMessage) {
         if (!(test_environment instanceof ShadowRealmTestEnvironment)) {
-            throw new Error("beign_shadow_realm_tests called in non-Shadow Realm environment");
+            throw new Error("begin_shadow_realm_tests called in non-Shadow Realm environment");
         }
 
         test_environment.begin(function (msg) {
@@ -4733,7 +4754,7 @@
         if ('META_TITLE' in global_scope && META_TITLE) {
             return META_TITLE;
         }
-        if ('location' in global_scope) {
+        if ('location' in global_scope && 'pathname' in location) {
             return location.pathname.substring(location.pathname.lastIndexOf('/') + 1, location.pathname.indexOf('.'));
         }
         return "Untitled";
diff --git a/test/fixtures/wpt/resources/webidl2/.gitignore b/test/fixtures/wpt/resources/webidl2/.gitignore
deleted file mode 100644
index 1d72980cd7ea87..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-scratch
-node_modules
-lib-cov
-browser-tests.html
diff --git a/test/fixtures/wpt/resources/webidl2/.travis.yml b/test/fixtures/wpt/resources/webidl2/.travis.yml
deleted file mode 100644
index 6dc8e2bdbaa6cf..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/.travis.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-language: node_js
-node_js:
-  - node
-  - lts/*
-  - 6
diff --git a/test/fixtures/wpt/resources/webidl2/CHANGELOG.md b/test/fixtures/wpt/resources/webidl2/CHANGELOG.md
deleted file mode 100644
index 91e22275e0700e..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/CHANGELOG.md
+++ /dev/null
@@ -1,292 +0,0 @@
-# Change Log
-
-## [v10.2.1](https://github.com/w3c/webidl2.js/tree/v10.2.1) (2018-03-09)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v10.2.0...v10.2.1)
-
-**Merged pull requests:**
-
-- Optimise tokenisation and whitespace skipping [\#139](https://github.com/w3c/webidl2.js/pull/139) ([ricea](https://github.com/ricea))
-- refactor: small syntax changes [\#137](https://github.com/w3c/webidl2.js/pull/137) ([saschanaz](https://github.com/saschanaz))
-
-## [v10.2.0](https://github.com/w3c/webidl2.js/tree/v10.2.0) (2018-01-30)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v10.1.0...v10.2.0)
-
-**Merged pull requests:**
-
-- Type on union idlType [\#135](https://github.com/w3c/webidl2.js/pull/135) ([saschanaz](https://github.com/saschanaz))
-- feat: add argument/return type [\#134](https://github.com/w3c/webidl2.js/pull/134) ([saschanaz](https://github.com/saschanaz))
-- feat: add dictionary/typedef-type [\#133](https://github.com/w3c/webidl2.js/pull/133) ([saschanaz](https://github.com/saschanaz))
-- feat: add const-type for idlTypes  [\#132](https://github.com/w3c/webidl2.js/pull/132) ([saschanaz](https://github.com/saschanaz))
-- feat: add types on idlTypes [\#131](https://github.com/w3c/webidl2.js/pull/131) ([saschanaz](https://github.com/saschanaz))
-- Auto acquisition for parser result changes [\#130](https://github.com/w3c/webidl2.js/pull/130) ([saschanaz](https://github.com/saschanaz))
-
-## [v10.1.0](https://github.com/w3c/webidl2.js/tree/v10.1.0) (2018-01-19)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v10.0.0...v10.1.0)
-
-**Closed issues:**
-
-- Support `raises` and `setraises` [\#128](https://github.com/w3c/webidl2.js/issues/128)
-- Support `legacycaller` [\#127](https://github.com/w3c/webidl2.js/issues/127)
-- Improve "No semicolon after enum" message [\#119](https://github.com/w3c/webidl2.js/issues/119)
-
-**Merged pull requests:**
-
-- Let error messages include the current definition name [\#129](https://github.com/w3c/webidl2.js/pull/129) ([saschanaz](https://github.com/saschanaz))
-
-## [v10.0.0](https://github.com/w3c/webidl2.js/tree/v10.0.0) (2017-12-20)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v9.0.0...v10.0.0)
-
-**Closed issues:**
-
--  Always return an array for idlType, etc. [\#113](https://github.com/w3c/webidl2.js/issues/113)
-- Maintain writer.js or not? [\#109](https://github.com/w3c/webidl2.js/issues/109)
-
-**Merged pull requests:**
-
-- Remove typeExtAttrs from docs [\#124](https://github.com/w3c/webidl2.js/pull/124) ([saschanaz](https://github.com/saschanaz))
-- Remove iterator documentation [\#123](https://github.com/w3c/webidl2.js/pull/123) ([saschanaz](https://github.com/saschanaz))
-- Maintain writer.js [\#122](https://github.com/w3c/webidl2.js/pull/122) ([saschanaz](https://github.com/saschanaz))
-- BREAKING CHANGE: remove deprecated iterator operation [\#121](https://github.com/w3c/webidl2.js/pull/121) ([saschanaz](https://github.com/saschanaz))
-- Use for-of on tests [\#120](https://github.com/w3c/webidl2.js/pull/120) ([saschanaz](https://github.com/saschanaz))
-- docs\(README\): iterables ildType is always array [\#118](https://github.com/w3c/webidl2.js/pull/118) ([marcoscaceres](https://github.com/marcoscaceres))
-
-## [v9.0.0](https://github.com/w3c/webidl2.js/tree/v9.0.0) (2017-11-30)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v8.1.0...v9.0.0)
-
-**Closed issues:**
-
-- Code quality [\#116](https://github.com/w3c/webidl2.js/issues/116)
-- Unable to parse HTMLAllCollection interface [\#114](https://github.com/w3c/webidl2.js/issues/114)
-- Add support for mixin syntax [\#112](https://github.com/w3c/webidl2.js/issues/112)
-- Whitespace issues [\#111](https://github.com/w3c/webidl2.js/issues/111)
-
-**Merged pull requests:**
-
-- Consistent array type for iterable.idlType [\#117](https://github.com/w3c/webidl2.js/pull/117) ([saschanaz](https://github.com/saschanaz))
--  Revert "chore: drop Node 6 support \(\#102\)" [\#115](https://github.com/w3c/webidl2.js/pull/115) ([TimothyGu](https://github.com/TimothyGu))
-
-## [v8.1.0](https://github.com/w3c/webidl2.js/tree/v8.1.0) (2017-11-03)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v8.0.1...v8.1.0)
-
-**Closed issues:**
-
-- Extended Attributes `rhs` should always be there [\#96](https://github.com/w3c/webidl2.js/issues/96)
-
-**Merged pull requests:**
-
-- Always add rhs property [\#110](https://github.com/w3c/webidl2.js/pull/110) ([saschanaz](https://github.com/saschanaz))
-
-## [v8.0.1](https://github.com/w3c/webidl2.js/tree/v8.0.1) (2017-11-03)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v8.0.0...v8.0.1)
-
-**Fixed bugs:**
-
-- Comment order parsing bug  [\#107](https://github.com/w3c/webidl2.js/issues/107)
-
-**Merged pull requests:**
-
-- Remove m postfix from all\_ws\(\) [\#108](https://github.com/w3c/webidl2.js/pull/108) ([saschanaz](https://github.com/saschanaz))
-
-## [v8.0.0](https://github.com/w3c/webidl2.js/tree/v8.0.0) (2017-11-03)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v7.0.0...v8.0.0)
-
-**Closed issues:**
-
-- Remove creators support [\#100](https://github.com/w3c/webidl2.js/issues/100)
-- Add mixin support [\#92](https://github.com/w3c/webidl2.js/issues/92)
-
-**Merged pull requests:**
-
-- Support mixins + includes statements [\#105](https://github.com/w3c/webidl2.js/pull/105) ([saschanaz](https://github.com/saschanaz))
-- chore: drop Node 6 support [\#102](https://github.com/w3c/webidl2.js/pull/102) ([marcoscaceres](https://github.com/marcoscaceres))
-- BREAKING CHANGE: drop creator support [\#101](https://github.com/w3c/webidl2.js/pull/101) ([saschanaz](https://github.com/saschanaz))
-- Normalize some whitespace to pass wpt's lint [\#99](https://github.com/w3c/webidl2.js/pull/99) ([foolip](https://github.com/foolip))
-
-## [v7.0.0](https://github.com/w3c/webidl2.js/tree/v7.0.0) (2017-10-27)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v6.1.0...v7.0.0)
-
-**Closed issues:**
-
-- Type conversion on default values is destructive  [\#94](https://github.com/w3c/webidl2.js/issues/94)
-- extended attribute structure missing type [\#89](https://github.com/w3c/webidl2.js/issues/89)
-
-**Merged pull requests:**
-
--  BREAKING CHANGE: argument + default types should be string [\#95](https://github.com/w3c/webidl2.js/pull/95) ([marcoscaceres](https://github.com/marcoscaceres))
-
-## [v6.1.0](https://github.com/w3c/webidl2.js/tree/v6.1.0) (2017-10-23)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v6.0.1...v6.1.0)
-
-**Merged pull requests:**
-
-- feat: give extended attributes a type [\#90](https://github.com/w3c/webidl2.js/pull/90) ([marcoscaceres](https://github.com/marcoscaceres))
-
-## [v6.0.1](https://github.com/w3c/webidl2.js/tree/v6.0.1) (2017-10-18)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v6.0.0...v6.0.1)
-
-**Closed issues:**
-
-- Enum values should be objects [\#86](https://github.com/w3c/webidl2.js/issues/86)
-
-**Merged pull requests:**
-
-- Use ES2015 syntax for tests [\#88](https://github.com/w3c/webidl2.js/pull/88) ([saschanaz](https://github.com/saschanaz))
-
-## [v6.0.0](https://github.com/w3c/webidl2.js/tree/v6.0.0) (2017-10-17)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v5.0.0...v6.0.0)
-
-**Merged pull requests:**
-
-- BREAKING CHANGE: ret enum value as object [\#87](https://github.com/w3c/webidl2.js/pull/87) ([marcoscaceres](https://github.com/marcoscaceres))
-
-## [v5.0.0](https://github.com/w3c/webidl2.js/tree/v5.0.0) (2017-10-17)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v4.2.0...v5.0.0)
-
-**Closed issues:**
-
-- Unable to parse annotated types in generics [\#83](https://github.com/w3c/webidl2.js/issues/83)
-- Drop support for Node 4, move to 6 LTS [\#82](https://github.com/w3c/webidl2.js/issues/82)
-
-**Merged pull requests:**
-
-- BREAKING CHANGE: Use ES2015 syntax [\#84](https://github.com/w3c/webidl2.js/pull/84) ([saschanaz](https://github.com/saschanaz))
-
-## [v4.2.0](https://github.com/w3c/webidl2.js/tree/v4.2.0) (2017-10-16)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v4.1.0...v4.2.0)
-
-**Closed issues:**
-
-- Remove legacy caller support [\#78](https://github.com/w3c/webidl2.js/issues/78)
-- Should report error for using duplicate names [\#77](https://github.com/w3c/webidl2.js/issues/77)
-
-**Merged pull requests:**
-
-- Check duplicated names [\#80](https://github.com/w3c/webidl2.js/pull/80) ([saschanaz](https://github.com/saschanaz))
-- Remove legacycaller [\#79](https://github.com/w3c/webidl2.js/pull/79) ([saschanaz](https://github.com/saschanaz))
-- Add "sequence" property to IDL Type AST definition [\#76](https://github.com/w3c/webidl2.js/pull/76) ([lerouche](https://github.com/lerouche))
-
-## [v4.1.0](https://github.com/w3c/webidl2.js/tree/v4.1.0) (2017-07-04)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v4.0.0...v4.1.0)
-
-**Closed issues:**
-
-- Parsing error for annonated inner types of generic types [\#71](https://github.com/w3c/webidl2.js/issues/71)
-
-**Merged pull requests:**
-
-- Support TypeWithExtendedAttributes on generics [\#75](https://github.com/w3c/webidl2.js/pull/75) ([saschanaz](https://github.com/saschanaz))
-
-## [v4.0.0](https://github.com/w3c/webidl2.js/tree/v4.0.0) (2017-06-27)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v3.0.2...v4.0.0)
-
-**Closed issues:**
-
-- Remove serializer-related productions [\#73](https://github.com/w3c/webidl2.js/issues/73)
-- Records don't seem to be working right [\#72](https://github.com/w3c/webidl2.js/issues/72)
-- Document namespace member output [\#59](https://github.com/w3c/webidl2.js/issues/59)
-
-**Merged pull requests:**
-
-- BREAKING CHANGE: remove serializers \(closes \#73\) [\#74](https://github.com/w3c/webidl2.js/pull/74) ([marcoscaceres](https://github.com/marcoscaceres))
-- Add documentation for namespaces [\#70](https://github.com/w3c/webidl2.js/pull/70) ([saschanaz](https://github.com/saschanaz))
-
-## [v3.0.2](https://github.com/w3c/webidl2.js/tree/v3.0.2) (2017-05-29)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v3.0.1...v3.0.2)
-
-**Closed issues:**
-
-- Whitespace issues [\#64](https://github.com/w3c/webidl2.js/issues/64)
-
-**Merged pull requests:**
-
-- Test for latest LTS/stable node versions [\#69](https://github.com/w3c/webidl2.js/pull/69) ([saschanaz](https://github.com/saschanaz))
-
-## [v3.0.1](https://github.com/w3c/webidl2.js/tree/v3.0.1) (2017-05-18)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v2.4.0...v3.0.1)
-
-**Closed issues:**
-
-- Is array syntax dead? [\#66](https://github.com/w3c/webidl2.js/issues/66)
-- Remove exceptions support [\#65](https://github.com/w3c/webidl2.js/issues/65)
-
-**Merged pull requests:**
-
-- Fix whitespace error on parsing extended attributes [\#68](https://github.com/w3c/webidl2.js/pull/68) ([saschanaz](https://github.com/saschanaz))
-- Remove deprecated IDL arrays and exceptions [\#67](https://github.com/w3c/webidl2.js/pull/67) ([saschanaz](https://github.com/saschanaz))
-
-## [v2.4.0](https://github.com/w3c/webidl2.js/tree/v2.4.0) (2017-04-12)
-[Full Changelog](https://github.com/w3c/webidl2.js/compare/v2.1.0...v2.4.0)
-
-**Closed issues:**
-
-- Add support for Annotated Types [\#60](https://github.com/w3c/webidl2.js/issues/60)
-- Question: Convert WebIDL -\> Javascript [\#56](https://github.com/w3c/webidl2.js/issues/56)
-- Get Robin to give us push permissions on npm [\#54](https://github.com/w3c/webidl2.js/issues/54)
-- Add support for records [\#53](https://github.com/w3c/webidl2.js/issues/53)
-- module not supported? [\#52](https://github.com/w3c/webidl2.js/issues/52)
-- Add support for namespaces [\#51](https://github.com/w3c/webidl2.js/issues/51)
-- Export is not AMD compatible [\#48](https://github.com/w3c/webidl2.js/issues/48)
-- Can't represent large constants [\#21](https://github.com/w3c/webidl2.js/issues/21)
-
-**Merged pull requests:**
-
-- Update webidl2.js [\#63](https://github.com/w3c/webidl2.js/pull/63) ([tqeto](https://github.com/tqeto))
-- Remove support for MapClass \(no longer valid in WebIDL\) [\#62](https://github.com/w3c/webidl2.js/pull/62) ([dontcallmedom](https://github.com/dontcallmedom))
-- Add support for annotated types [\#61](https://github.com/w3c/webidl2.js/pull/61) ([dontcallmedom](https://github.com/dontcallmedom))
-- Support namespaces [\#58](https://github.com/w3c/webidl2.js/pull/58) ([saschanaz](https://github.com/saschanaz))
-- Add support for records [\#57](https://github.com/w3c/webidl2.js/pull/57) ([TimothyGu](https://github.com/TimothyGu))
-- Refactor [\#50](https://github.com/w3c/webidl2.js/pull/50) ([marcoscaceres](https://github.com/marcoscaceres))
-- feat\(lib\): add AMD export support \(closes \#48\) [\#49](https://github.com/w3c/webidl2.js/pull/49) ([marcoscaceres](https://github.com/marcoscaceres))
-
-## [v2.1.0](https://github.com/w3c/webidl2.js/tree/v2.1.0) (2016-08-12)
-**Closed issues:**
-
-- Exception when parsing test/syntax/idl/typedef.widl [\#46](https://github.com/w3c/webidl2.js/issues/46)
-- Wrong jsondiffpatch location [\#42](https://github.com/w3c/webidl2.js/issues/42)
-- 'npm install' fails on building microtime [\#40](https://github.com/w3c/webidl2.js/issues/40)
-- Can't represent union types in typedefs [\#38](https://github.com/w3c/webidl2.js/issues/38)
-- tokenise\(\) assumes a specific property enumeration order [\#27](https://github.com/w3c/webidl2.js/issues/27)
-- Add support for iterable\<\>, maplike\<\>, setlike\<\> declarations [\#24](https://github.com/w3c/webidl2.js/issues/24)
-- WebIDL2 fails to parse `attribute Promise\<DOMString\>\[\] baz` [\#19](https://github.com/w3c/webidl2.js/issues/19)
-- Support for ExtendedAttributeIdentList \(current editor's draft\) [\#18](https://github.com/w3c/webidl2.js/issues/18)
-- No Licensing Information [\#17](https://github.com/w3c/webidl2.js/issues/17)
-- how to regenerate w3c idl files ? [\#14](https://github.com/w3c/webidl2.js/issues/14)
-- What is lib/writer.js [\#13](https://github.com/w3c/webidl2.js/issues/13)
-- Numerous tests are failing [\#7](https://github.com/w3c/webidl2.js/issues/7)
-- Add support for missing types in ServiceWorker [\#5](https://github.com/w3c/webidl2.js/issues/5)
-- How can I parse just a function? [\#3](https://github.com/w3c/webidl2.js/issues/3)
-- Parser throws on nullable array of nullable array [\#2](https://github.com/w3c/webidl2.js/issues/2)
-- Parser throws on nullable array of any [\#1](https://github.com/w3c/webidl2.js/issues/1)
-
-**Merged pull requests:**
-
-- Fix "default": undefined [\#47](https://github.com/w3c/webidl2.js/pull/47) ([mkwtys](https://github.com/mkwtys))
-- Replace expect.js with expct [\#45](https://github.com/w3c/webidl2.js/pull/45) ([halton](https://github.com/halton))
-- Correct jsondiffpatch location. [\#44](https://github.com/w3c/webidl2.js/pull/44) ([halton](https://github.com/halton))
-- Bump microtime to 2.1.1 [\#43](https://github.com/w3c/webidl2.js/pull/43) ([halton](https://github.com/halton))
-- Expand writer support [\#39](https://github.com/w3c/webidl2.js/pull/39) ([markandrus](https://github.com/markandrus))
-- Accept wider \(but still incomplete\) set of allowed syntax for extended attributes [\#37](https://github.com/w3c/webidl2.js/pull/37) ([mlogan](https://github.com/mlogan))
-- Add test for callback with multiple arguments. [\#36](https://github.com/w3c/webidl2.js/pull/36) ([tobie](https://github.com/tobie))
-- Iterables [\#34](https://github.com/w3c/webidl2.js/pull/34) ([motiz88](https://github.com/motiz88))
-- Allow trailing comma in enum value lists, per spec [\#33](https://github.com/w3c/webidl2.js/pull/33) ([motiz88](https://github.com/motiz88))
-- Allow typedefs within interfaces \(behind an opt-in flag\) [\#32](https://github.com/w3c/webidl2.js/pull/32) ([motiz88](https://github.com/motiz88))
-- In draft [\#31](https://github.com/w3c/webidl2.js/pull/31) ([othree](https://github.com/othree))
-- Add support for extended attributes identifier lists [\#29](https://github.com/w3c/webidl2.js/pull/29) ([tobie](https://github.com/tobie))
-- Make `attribute Promise\<T\>\[\] attr;` work. [\#26](https://github.com/w3c/webidl2.js/pull/26) ([jyasskin](https://github.com/jyasskin))
-- Parse required dictionary fields. [\#25](https://github.com/w3c/webidl2.js/pull/25) ([jyasskin](https://github.com/jyasskin))
-- Define the WebIDL2 property on self rather than window. [\#23](https://github.com/w3c/webidl2.js/pull/23) ([Ms2ger](https://github.com/Ms2ger))
-- Teach WebIDL2 to parse \[\] default values. [\#22](https://github.com/w3c/webidl2.js/pull/22) ([jyasskin](https://github.com/jyasskin))
-- Support ID list in extended attributes [\#20](https://github.com/w3c/webidl2.js/pull/20) ([othree](https://github.com/othree))
-- Make sure that `sequence` property of idl types is set to false if the type is actually `sequence`. [\#16](https://github.com/w3c/webidl2.js/pull/16) ([tobie](https://github.com/tobie))
-- Parametrized [\#15](https://github.com/w3c/webidl2.js/pull/15) ([tobie](https://github.com/tobie))
-- Add promise support [\#12](https://github.com/w3c/webidl2.js/pull/12) ([tobie](https://github.com/tobie))
-- Remove broken coverage support from travis for now. [\#11](https://github.com/w3c/webidl2.js/pull/11) ([tobie](https://github.com/tobie))
-- Add support for \[MapClass\(type, type\)\]. [\#10](https://github.com/w3c/webidl2.js/pull/10) ([tobie](https://github.com/tobie))
-- Incorporate tests from widlproc\[1\] and remove dependency on said project. [\#9](https://github.com/w3c/webidl2.js/pull/9) ([tobie](https://github.com/tobie))
-- README incorrectly recommended updating the widlproc submodule. [\#8](https://github.com/w3c/webidl2.js/pull/8) ([tobie](https://github.com/tobie))
-- Fix bug where instrumented version of webidl2 was loaded. [\#6](https://github.com/w3c/webidl2.js/pull/6) ([tobie](https://github.com/tobie))
-- Use https:// instead of git:// [\#4](https://github.com/w3c/webidl2.js/pull/4) ([Manishearth](https://github.com/Manishearth))
-
-
-
-\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*
\ No newline at end of file
diff --git a/test/fixtures/wpt/resources/webidl2/LICENSE b/test/fixtures/wpt/resources/webidl2/LICENSE
deleted file mode 100644
index fd21d439b09a8d..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Robin Berjon
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/test/fixtures/wpt/resources/webidl2/README.md b/test/fixtures/wpt/resources/webidl2/README.md
deleted file mode 100644
index 9a8f3f8e9c1dfb..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/README.md
+++ /dev/null
@@ -1,629 +0,0 @@
-
-# WebIDL 2
-
-[![NPM version](https://badge.fury.io/js/webidl2.svg)](http://badge.fury.io/js/webidl2)
-
-## Purpose
-
-This is a parser for the [WebIDL](http://dev.w3.org/2006/webapi/WebIDL/) language. If
-you don't know what that is, then you probably don't need it. It is meant to be used
-both in Node and in the browser (the parser likely works in other JS environments, but
-not the test suite).
-
-## Installation
-
-Just the usual. For Node:
-
-```Bash
-npm install webidl2
-```
-
-In the browser:
-
-```HTML
-<script src='webidl2.js'></script>
-```
-
-## Documentation
-
-The API to WebIDL2 is trivial: you parse a string of WebIDL and it returns a syntax tree.
-
-### Parsing
-
-In Node, that happens with:
-
-```JS
-var WebIDL2 = require("webidl2");
-var tree = WebIDL2.parse("string of WebIDL");
-```
-
-In the browser:
-```HTML
-<script src='webidl2.js'></script>
-<script>
-  var tree = WebIDL2.parse("string of WebIDL");
-</script>
-```
-
-### Errors
-
-When there is a syntax error in the WebIDL, it throws an exception object with the following
-properties:
-
-* `message`: the error message
-* `line`: the line at which the error occurred.
-* `input`: a short peek at the text at the point where the error happened
-* `tokens`: the five tokens at the point of error, as understood by the tokeniser
-  (this is the same content as `input`, but seen from the tokeniser's point of view)
-
-The exception also has a `toString()` method that hopefully should produce a decent
-error message.
-
-### AST (Abstract Syntax Tree)
-
-The `parse()` method returns a tree object representing the parse tree of the IDL.
-Comment and white space are not represented in the AST.
-
-The root of this object is always an array of definitions (where definitions are
-any of interfaces, dictionaries, callbacks, etc. — anything that can occur at the root
-of the IDL).
-
-### IDL Type
-
-This structure is used in many other places (operation return types, argument types, etc.).
-It captures a WebIDL type with a number of options. Types look like this and are typically
-attached to a field called `idlType`:
-
-```JS
-{
-  "type": "attribute-type",
-  "generic": null,
-  "idlType": "unsigned short",
-  "nullable": false,
-  "union": false,
-  "extAttrs": [...]
-}
-```
-
-Where the fields are as follows:
-
-* `type`: String indicating where this type is used. Can be `null` if not applicable.
-* `generic`: String indicating the generic type (e.g. "Promise", "sequence"). `null`
-  otherwise.
-* `idlType`: Can be different things depending on context. In most cases, this will just
-  be a string with the type name. But the reason this field isn't called "typeName" is
-  because it can take more complex values. If the type is a union, then this contains an
-  array of the types it unites. If it is a generic type, it contains the IDL type
-  description for the type in the sequence, the eventual value of the promise, etc.
-* `nullable`: Boolean indicating whether this is nullable or not.
-* `union`: Boolean indicating whether this is a union type or not.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Interface
-
-Interfaces look like this:
-
-```JS
-{
-  "type": "interface",
-  "name": "Animal",
-  "partial": false,
-  "members": [...],
-  "inheritance": null,
-  "extAttrs": [...]
-}, {
-  "type": "interface",
-  "name": "Human",
-  "partial": false,
-  "members": [...],
-  "inheritance": "Animal",
-  "extAttrs": [...]
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "interface".
-* `name`: The name of the interface.
-* `partial`: A boolean indicating whether it's a partial interface.
-* `members`: An array of interface members (attributes, operations, etc.). Empty if there are none.
-* `inheritance`: A string giving the name of an interface this one inherits from, `null` otherwise.
-  **NOTE**: In v1 this was an array, but multiple inheritance is no longer supported so this didn't make
-  sense.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Interface mixins
-
-Interfaces mixins look like this:
-
-```JS
-{
-  "type": "interface mixin",
-  "name": "Animal",
-  "partial": false,
-  "members": [...],
-  "extAttrs": [...]
-}, {
-  "type": "interface mixin",
-  "name": "Human",
-  "partial": false,
-  "members": [...],
-  "extAttrs": [...]
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "interface mixin".
-* `name`: The name of the interface mixin.
-* `partial`: A boolean indicating whether it's a partial interface mixin.
-* `members`: An array of interface members (attributes, operations, etc.). Empty if there are none.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Namespace
-
-Namespaces look like this:
-
-```JS
-{
-  "type": "namespace",
-  "name": "Console",
-  "partial": false,
-  "members": [...],
-  "extAttrs": [...]
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "namespace".
-* `name`: The name of the namespace.
-* `partial`: A boolean indicating whether it's a partial namespace.
-* `members`: An array of namespace members (attributes and operations). Empty if there are none.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Callback Interfaces
-
-These are captured by the same structure as [Interfaces](#interface) except that
-their `type` field is "callback interface".
-
-### Callback
-
-A callback looks like this:
-
-```JS
-{
-  "type": "callback",
-  "name": "AsyncOperationCallback",
-  "idlType": {
-    "type": "return-type",
-    "sequence": false,
-    "generic": null,
-    "nullable": false,
-    "union": false,
-    "idlType": "void",
-    "extAttrs": []
-  },
-  "arguments": [...],
-  "extAttrs": []
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "callback".
-* `name`: The name of the callback.
-* `idlType`: An [IDL Type](#idl-type) describing what the callback returns.
-* `arguments`: A list of [arguments](#arguments), as in function paramters.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Dictionary
-
-A dictionary looks like this:
-
-```JS
-{
-  "type": "dictionary",
-  "name": "PaintOptions",
-  "partial": false,
-  "members": [{
-    "type": "field",
-    "name": "fillPattern",
-    "required": false,
-    "idlType": {
-      "type": "dictionary-type",
-      "sequence": false,
-      "generic": null,
-      "nullable": true,
-      "union": false,
-      "idlType": "DOMString",
-      "extAttrs": [...]
-    },
-    "extAttrs": [],
-    "default": {
-      "type": "string",
-      "value": "black"
-    }
-  }],
-  "inheritance": null,
-  "extAttrs": []
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "dictionary".
-* `name`: The dictionary name.
-* `partial`: Boolean indicating whether it's a partial dictionary.
-* `members`: An array of members (see below).
-* `inheritance`: A string indicating which dictionary is being inherited from, `null` otherwise.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-All the members are fields as follows:
-
-* `type`: Always "field".
-* `name`: The name of the field.
-* `required`: Boolean indicating whether this is a [required](https://heycam.github.io/webidl/#required-dictionary-member) field.
-* `idlType`: An [IDL Type](#idl-type) describing what field's type.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-* `default`: A [default value](#default-and-const-values), absent if there is none.
-
-### Enum
-
-An enum looks like this:
-
-```JS
-{
-  "type": "enum",
-  "name": "MealType",
-  "values": [
-    { "type": "string", "value": "rice" },
-    { "type": "string", "value": "noodles" },
-    { "type": "string", "value": "other" }
-  ],
-  "extAttrs": []
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "enum".
-* `name`: The enum's name.
-* `values`: An array of values.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Typedef
-
-A typedef looks like this:
-
-```JS
-{
-  "type": "typedef",
-  "idlType": {
-    "type": "typedef-type",
-    "sequence": true,
-    "generic": "sequence",
-    "nullable": false,
-    "union": false,
-    "idlType": {
-      "type": "typedef-type",
-      "sequence": false,
-      "generic": null,
-      "nullable": false,
-      "union": false,
-      "idlType": "Point",
-      "extAttrs": [...]
-    },
-    "extAttrs": [...]
-  },
-  "name": "PointSequence",
-  "extAttrs": []
-}
-```
-
-
-The fields are as follows:
-
-* `type`: Always "typedef".
-* `name`: The typedef's name.
-* `idlType`: An [IDL Type](#idl-type) describing what typedef's type.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Implements
-
-An implements definition looks like this:
-
-```JS
-{
-  "type": "implements",
-  "target": "Node",
-  "implements": "EventTarget",
-  "extAttrs": []
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "implements".
-* `target`: The interface that implements another.
-* `implements`: The interface that is being implemented by the target.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Includes
-
-An includes definition looks like this:
-
-```JS
-{
-  "type": "includes",
-  "target": "Node",
-  "includes": "EventTarget",
-  "extAttrs": []
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "includes".
-* `target`: The interface that includes an interface mixin.
-* `includes`: The interface mixin that is being included by the target.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Operation Member
-
-An operation looks like this:
-```JS
-{
-  "type": "operation",
-  "getter": false,
-  "setter": false,
-  "deleter": false,
-  "static": false,
-  "stringifier": false,
-  "idlType": {
-    "type": "return-type",
-    "sequence": false,
-    "generic": null,
-    "nullable": false,
-    "union": false,
-    "idlType": "void",
-    "extAttrs": []
-  },
-  "name": "intersection",
-  "arguments": [{
-    "optional": false,
-    "variadic": true,
-    "extAttrs": [],
-    "idlType": {
-      "type": "argument-type",
-      "sequence": false,
-      "generic": null,
-      "nullable": false,
-      "union": false,
-      "idlType": "long",
-      "extAttrs": [...]
-    },
-    "name": "ints"
-  }],
-  "extAttrs": []
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "operation".
-* `getter`: True if a getter operation.
-* `setter`: True if a setter operation.
-* `deleter`: True if a deleter operation.
-* `static`: True if a static operation.
-* `stringifier`: True if a stringifier operation.
-* `idlType`: An [IDL Type](#idl-type) of what the operation returns. If a stringifier, may be absent.
-* `name`: The name of the operation. If a stringifier, may be `null`.
-* `arguments`: An array of [arguments](#arguments) for the operation.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Attribute Member
-
-An attribute member looks like this:
-
-```JS
-{
-  "type": "attribute",
-  "static": false,
-  "stringifier": false,
-  "inherit": false,
-  "readonly": false,
-  "idlType": {
-    "type": "attribute-type",
-    "sequence": false,
-    "generic": null,
-    "nullable": false,
-    "union": false,
-    "idlType": "RegExp",
-    "extAttrs": [...]
-  },
-  "name": "regexp",
-  "extAttrs": []
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "attribute".
-* `name`: The attribute's name.
-* `static`: True if it's a static attribute.
-* `stringifier`: True if it's a stringifier attribute.
-* `inherit`: True if it's an inherit attribute.
-* `readonly`: True if it's a read-only attribute.
-* `idlType`: An [IDL Type](#idl-type) for the attribute.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Constant Member
-
-A constant member looks like this:
-
-```JS
-{
-  "type": "const",
-  "nullable": false,
-  "idlType": {
-    "type": "const-type",
-    "sequence": false,
-    "generic": null,
-    "nullable": false,
-    "union": false,
-    "idlType": "boolean"
-    "extAttrs": []
-  },
-  "name": "DEBUG",
-  "value": {
-    "type": "boolean",
-    "value": false
-  },
-  "extAttrs": []
-}
-```
-
-The fields are as follows:
-
-* `type`: Always "const".
-* `nullable`: Whether its type is nullable.
-* `idlType`: An [IDL Type](#idl-type) of the constant that represents a simple type, the type name.
-* `name`: The name of the constant.
-* `value`: The constant value as described by [Const Values](#default-and-const-values)
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Arguments
-
-The arguments (e.g. for an operation) look like this:
-
-```JS
-{
-  "arguments": [{
-    "optional": false,
-    "variadic": true,
-    "extAttrs": [],
-    "idlType": {
-      "type": "argument-type",
-      "sequence": false,
-      "generic": null,
-      "nullable": false,
-      "union": false,
-      "idlType": "long",
-      "extAttrs": [...]
-    },
-    "name": "ints"
-  }]
-}
-```
-
-The fields are as follows:
-
-* `optional`: True if the argument is optional.
-* `variadic`: True if the argument is variadic.
-* `idlType`: An [IDL Type](#idl-type) describing the type of the argument.
-* `name`: The argument's name.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-### Extended Attributes
-
-Extended attributes are arrays of items that look like this:
-
-```JS
-{
-  "extAttrs": [{
-    "name": "TreatNullAs",
-    "arguments": null,
-    "type": "extended-attribute",
-    "rhs": {
-      "type": "identifier",
-      "value": "EmptyString"
-    }
-  }]
-}
-```
-
-The fields are as follows:
-
-* `name`: The extended attribute's name.
-* `arguments`: If the extended attribute takes arguments (e.g. `[Foo()]`) or if
-  its right-hand side does (e.g. `[NamedConstructor=Name(DOMString blah)]`) they
-  are listed here. Note that an empty arguments list will produce an empty array,
-  whereas the lack thereof will yield a `null`. If there is an `rhs` field then
-  they are the right-hand side's arguments, otherwise they apply to the extended
-  attribute directly.
-* `type`: Always `"extended-attribute"`.
-* `rhs`: If there is a right-hand side, this will capture its `type` (which can be
-  "identifier" or "identifier-list") and its `value`.
-
-### Default and Const Values
-
-Dictionary fields and operation arguments can take default values, and constants take
-values, all of which have the following fields:
-
-* `type`: One of string, number, boolean, null, Infinity, NaN, or sequence.
-
-For string, number, boolean, and sequence:
-
-* `value`: The value of the given type, as a string. For sequence, the only possible value is `[]`.
-
-For Infinity:
-
-* `negative`: Boolean indicating whether this is negative Infinity or not.
-
-### `iterable<>`, `legacyiterable<>`, `maplike<>`, `setlike<>` declarations
-
-These appear as members of interfaces that look like this:
-
-```JS
-{
-  "type": "maplike", // or "legacyiterable" / "iterable" / "setlike"
-  "idlType": /* One or two types */ ,
-  "readonly": false, // only for maplike and setlike
-  "extAttrs": []
-}
-```
-
-The fields are as follows:
-
-* `type`: Always one of "iterable", "legacyiterable", "maplike" or "setlike".
-* `idlType`: An array with one or more [IDL Types](#idl-type) representing the declared type arguments.
-* `readonly`: Whether the maplike or setlike is declared as read only.
-* `extAttrs`: A list of [extended attributes](#extended-attributes).
-
-
-## Testing
-
-### Running
-
-The test runs with mocha and expect.js. Normally, running mocha in the root directory
-should be enough once you're set up.
-
-### Coverage
-
-Current test coverage, as documented in `coverage.html`, is 95%. You can run your own
-coverage analysis with:
-
-```Bash
-jscoverage lib lib-cov
-```
-
-That will create the lib-cov directory with instrumented code; the test suite knows
-to use that if needed. You can then run the tests with:
-
-```Bash
-JSCOV=1 mocha --reporter html-cov > coverage.html
-```
-
-Note that I've been getting weirdly overescaped results from the html-cov reporter,
-so you might wish to try this instead:
-
-```Bash
-JSCOV=1 mocha  --reporter html-cov | sed "s/&lt;/</g" | sed "s/&gt;/>/g" | sed "s/&quot;/\"/g" > coverage.html
-```
-### Browser tests
-
-In order to test in the browser, get inside `test/web` and run `make-web-tests.js`. This
-will generate a `browser-tests.html` file that you can open in a browser. As of this
-writing tests pass in the latest Firefox, Chrome, Opera, and Safari. Testing on IE
-and older versions will happen progressively.
diff --git a/test/fixtures/wpt/resources/webidl2/checker/index.html b/test/fixtures/wpt/resources/webidl2/checker/index.html
deleted file mode 100644
index 9897d8572f22a0..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/checker/index.html
+++ /dev/null
@@ -1,55 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<title>WebIDL 2 Checker</title>
-
-<script src='../lib/webidl2.js'></script>
-<script>
-let parserResult = undefined;
-
-function formatParserOutput() {
-  const outputEl = document.getElementById('webidl-checker-output');
-  if (parserResult) {
-    const prettyPrintEl = document.getElementById('pretty-print');
-    outputEl.innerText = JSON.stringify(parserResult, null, prettyPrintEl.checked ? 2 : null);
-  } else {
-    outputEl.innerText = '';
-  }
-}
-
-function checkWebIDL(textToCheck) {
-  const validation = document.getElementById('webidl-checker-validation');
-  parserResult = null;
-  try {
-    parserResult = WebIDL2.parse(textToCheck);
-    validation.innerText = 'WebIDL parsed successfully!';
-  } catch (e) {
-    validation.innerText = 'Exception while parsing WebIDL. See JavaScript console for more details.\n\n' + e.toString();
-    // Pass it along to the JavaScript console.
-    throw e;
-  } finally {
-    formatParserOutput();
-  }
-}
-</script>
-<style>
-textarea {
-  font-family: monospace;
-}
-</style>
-</head>
-<body>
-<h2>WebIDL Checker</h2>
-<p>This is an online checker for WebIDL built on the <a href="https://github.com/w3c/webidl2.js">webidl2.js</a> project.</p>
-<p>Enter your WebIDL to check below:</p>
-<textarea id='webidl-to-check' rows='20' cols='80'></textarea>
-<br>
-<input type='button' value='Check WebIDL' onclick='checkWebIDL(document.getElementById("webidl-to-check").value)'>
-<p>Validation results:</p>
-<textarea id='webidl-checker-validation' rows='20' cols='80'></textarea>
-<p>Parser output:</p>
-<textarea id='webidl-checker-output' rows='20' cols='80'></textarea>
-<br>
-<input type='checkbox' id='pretty-print' checked='true' onchange='formatParserOutput()'>Pretty Print
-</body>
-</html>
diff --git a/test/fixtures/wpt/resources/webidl2/coverage.html b/test/fixtures/wpt/resources/webidl2/coverage.html
deleted file mode 100644
index 46e7ed324ec2c8..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/coverage.html
+++ /dev/null
@@ -1,341 +0,0 @@
-<!DOCTYPE html><html><head><title>Coverage</title><script>
-
-headings = [];
-
-onload = function(){
-  headings = document.querySelectorAll('h2');
-};
-
-onscroll = function(e){
-  var heading = find(window.scrollY);
-  if (!heading) return;
-  var links = document.querySelectorAll('#menu a')
-    , link;
-
-  for (var i = 0, len = links.length; i < len; ++i) {
-    link = links[i];
-    link.className = link.getAttribute('href') == '#' + heading.id
-      ? 'active'
-      : '';
-  }
-};
-
-function find(y) {
-  var i = headings.length
-    , heading;
-
-  while (i--) {
-    heading = headings[i];
-    if (y >= heading.offsetTop) {
-      return heading;
-    }
-  }
-}
-</script>
-<style>
-
-body {
-  font: 14px/1.6 "Helvetica Neue", Helvetica, Arial, sans-serif;
-  margin: 0;
-  color: #2C2C2C;
-  border-top: 2px solid #ddd;
-}
-
-#coverage {
-  padding: 60px;
-}
-
-h1 a {
-  color: inherit;
-  font-weight: inherit;
-}
-
-h1 a:hover {
-  text-decoration: none;
-}
-
-.onload h1 {
-  opacity: 1;
-}
-
-h2 {
-  width: 80%;
-  margin-top: 80px;
-  margin-bottom: 0;
-  font-weight: 100;
-  letter-spacing: 1px;
-  border-bottom: 1px solid #eee;
-}
-
-a {
-  color: #8A6343;
-  font-weight: bold;
-  text-decoration: none;
-}
-
-a:hover {
-  text-decoration: underline;
-}
-
-ul {
-  margin-top: 20px;
-  padding: 0 15px;
-  width: 100%;
-}
-
-ul li {
-  float: left;
-  width: 40%;
-  margin-top: 5px;
-  margin-right: 60px;
-  list-style: none;
-  border-bottom: 1px solid #eee;
-  padding: 5px 0;
-  font-size: 12px;
-}
-
-ul::after {
-  content: '.';
-  height: 0;
-  display: block;
-  visibility: hidden;
-  clear: both;
-}
-
-code {
-  font: 12px monaco, monospace;
-}
-
-pre {
-  margin: 30px;
-  padding: 30px;
-  border: 1px solid #eee;
-  border-bottom-color: #ddd;
-  -webkit-border-radius: 2px;
-  -moz-border-radius: 2px;
-  -webkit-box-shadow: inset 0 0 10px #eee;
-  -moz-box-shadow: inset 0 0 10px #eee;
-  overflow-x: auto;
-}
-
-img {
-  margin: 30px;
-  padding: 1px;
-  -webkit-border-radius: 3px;
-  -moz-border-radius: 3px;
-  -webkit-box-shadow: 0 3px 10px #dedede, 0 1px 5px #888;
-  -moz-box-shadow: 0 3px 10px #dedede, 0 1px 5px #888;
-  max-width: 100%;
-}
-
-footer {
-  background: #eee;
-  width: 100%;
-  padding: 50px 0;
-  text-align: right;
-  border-top: 1px solid #ddd;
-}
-
-footer span {
-  display: block;
-  margin-right: 30px;
-  color: #888;
-  font-size: 12px;
-}
-
-#menu {
-  position: fixed;
-  font-size: 12px;
-  overflow-y: auto;
-  top: 0;
-  right: 0;
-  margin: 0;
-  height: 100%;
-  padding: 15px 0;
-  text-align: right;
-  border-left: 1px solid #eee;
-  -moz-box-shadow: 0 0 2px #888
-     , inset 5px 0 20px rgba(0,0,0,.5)
-     , inset 5px 0 3px rgba(0,0,0,.3);
-  -webkit-box-shadow: 0 0 2px #888
-     , inset 5px 0 20px rgba(0,0,0,.5)
-     , inset 5px 0 3px rgba(0,0,0,.3);
-  -webkit-font-smoothing: antialiased;
-  background: 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");
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-</style></head><body><div id="coverage"><h1 id="overview">Coverage</h1><div id="menu"><li><a href="#overview">overview</a></li><li><span class="cov high">95</span><a href="#webidl2.js"><span class="basename">webidl2.js</span></a></li><a id="logo" href="http://visionmedia.github.com/mocha/">m</a></div><div id="stats" class="high"><div class="percentage">95%</div><div class="sloc">572</div><div class="hits">548</div><div class="misses">24</div></div><div id="files"><div class="file"><h2 id="webidl2.js">webidl2.js</h2><div id="stats" class="high"><div class="percentage">95%</div><div class="sloc">572</div><div class="hits">548</div><div class="misses">24</div></div><table id="source"><thead><tr><th>Line</th><th>Hits</th><th>Source</th></tr></thead><tbody><tr><td class="line">1</td><td class="hits"></td><td class="source"> </td></tr><tr><td class="line">2</td><td class="hits"></td><td class="source"> </td></tr><tr class="hit"> <td class="line">3</td><td class="hits">1</td><td class="source"><span class="k">(</span><span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">4</td><td class="hits">1</td><td class="source">    <span class="k">var</span> tokenise <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>str<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">5</td><td class="hits">47</td><td class="source">        <span class="k">var</span> tokens <span class="k">=</span> <span class="k">[]</span></td></tr><tr><td class="line">6</td><td class="hits"></td><td class="source">        <span class="k">,</span>   re <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">7</td><td class="hits"></td><td class="source">                <span class="s">"float"</span><span class="k">:</span>        <span class="s">/^-?(([0-9]+\.[0-9]*|[0-9]*\.[0-9]+)([Ee][-+]?[0-9]+)?|[0-9]+[Ee][-+]?[0-9]+)/</span></td></tr><tr><td class="line">8</td><td class="hits"></td><td class="source">            <span class="k">,</span>   <span class="s">"integer"</span><span class="k">:</span>      <span class="s">/^-?(0([Xx][0-9A-Fa-f]+|[0-7]*)|[1-9][0-9]*)/</span></td></tr><tr><td class="line">9</td><td class="hits"></td><td class="source">            <span class="k">,</span>   <span class="s">"identifier"</span><span class="k">:</span>   <span class="s">/^[A-Z_a-z][0-9A-Z_a-z]*/</span></td></tr><tr><td class="line">10</td><td class="hits"></td><td class="source">            <span class="k">,</span>   <span class="s">"string"</span><span class="k">:</span>       <span class="s">/^"[^"]*"/</span></td></tr><tr><td class="line">11</td><td class="hits"></td><td class="source">            <span class="k">,</span>   <span class="s">"whitespace"</span><span class="k">:</span>   <span class="s">/^(?:[\t\n\r ]+|[\t\n\r ]*((\/\/.*|\/\*(.|\n|\r)*?\*\/)[\t\n\r ]*))+/</span></td></tr><tr><td class="line">12</td><td class="hits"></td><td class="source">            <span class="k">,</span>   <span class="s">"other"</span><span class="k">:</span>        <span class="s">/^[^\t\n\r 0-9A-Z_a-z]/</span></td></tr><tr><td class="line">13</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">14</td><td class="hits"></td><td class="source">        <span class="k">,</span>   types <span class="k">=</span> <span class="k">[]</span></td></tr><tr><td class="line">15</td><td class="hits"></td><td class="source">        <span class="k">;</span></td></tr><tr class="hit"> <td class="line">16</td><td class="hits">329</td><td class="source">        <span class="k">for</span> <span class="k">(</span><span class="k">var</span> k <span class="k">in</span> re<span class="k">)</span> types<span class="k">.</span>push<span class="k">(</span>k<span class="k">);</span></td></tr><tr class="hit"> <td class="line">17</td><td class="hits">47</td><td class="source">        <span class="k">while</span> <span class="k">(</span>str<span class="k">.</span>length <span class="k">></span> <span class="s">0</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">18</td><td class="hits">2914</td><td class="source">            <span class="k">var</span> matched <span class="k">=</span> <span class="k">false</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">19</td><td class="hits">2914</td><td class="source">            <span class="k">for</span> <span class="k">(</span><span class="k">var</span> i <span class="k">=</span> <span class="s">0</span><span class="k">,</span> n <span class="k">=</span> types<span class="k">.</span>length<span class="k">;</span> i <span class="k"><</span> n<span class="k">;</span> i<span class="k">++)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">20</td><td class="hits">13325</td><td class="source">                <span class="k">var</span> type <span class="k">=</span> types<span class="k">[</span>i<span class="k">];</span></td></tr><tr class="hit"> <td class="line">21</td><td class="hits">13325</td><td class="source">                str <span class="k">=</span> str<span class="k">.</span>replace<span class="k">(</span>re<span class="k">[</span>type<span class="k">],</span> <span class="k">function</span> <span class="k">(</span>tok<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">22</td><td class="hits">2914</td><td class="source">                    tokens<span class="k">.</span>push<span class="k">(</span><span class="k">{</span> type<span class="k">:</span> type<span class="k">,</span> value<span class="k">:</span> tok <span class="k">}</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">23</td><td class="hits">2914</td><td class="source">                    matched <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">24</td><td class="hits">2914</td><td class="source">                    <span class="k">return</span> <span class="s">""</span><span class="k">;</span></td></tr><tr><td class="line">25</td><td class="hits"></td><td class="source">                <span class="k">}</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">26</td><td class="hits">16239</td><td class="source">                <span class="k">if</span> <span class="k">(</span>matched<span class="k">)</span> <span class="k">break</span><span class="k">;</span></td></tr><tr><td class="line">27</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">28</td><td class="hits">5828</td><td class="source">            <span class="k">if</span> <span class="k">(</span>matched<span class="k">)</span> <span class="k">continue</span><span class="k">;</span></td></tr><tr class="miss"> <td class="line">29</td><td class="hits">0</td><td class="source">            <span class="k">throw</span> <span class="k">new</span> Error<span class="k">(</span><span class="s">"Token stream not progressing"</span><span class="k">);</span></td></tr><tr><td class="line">30</td><td class="hits"></td><td class="source">        <span class="k">}</span></td></tr><tr class="hit"> <td class="line">31</td><td class="hits">47</td><td class="source">        <span class="k">return</span> tokens<span class="k">;</span></td></tr><tr><td class="line">32</td><td class="hits"></td><td class="source">    <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">33</td><td class="hits"></td><td class="source">    </td></tr><tr class="hit"> <td class="line">34</td><td class="hits">1</td><td class="source">    <span class="k">var</span> parse <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>tokens<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">35</td><td class="hits">47</td><td class="source">        <span class="k">var</span> line <span class="k">=</span> <span class="s">1</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">36</td><td class="hits">47</td><td class="source">        tokens <span class="k">=</span> tokens<span class="k">.</span>slice<span class="k">();</span></td></tr><tr><td class="line">37</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">38</td><td class="hits">47</td><td class="source">        <span class="k">var</span> FLOAT <span class="k">=</span> <span class="s">"float"</span></td></tr><tr><td class="line">39</td><td class="hits"></td><td class="source">        <span class="k">,</span>   INT <span class="k">=</span> <span class="s">"integer"</span></td></tr><tr><td class="line">40</td><td class="hits"></td><td class="source">        <span class="k">,</span>   ID <span class="k">=</span> <span class="s">"identifier"</span></td></tr><tr><td class="line">41</td><td class="hits"></td><td class="source">        <span class="k">,</span>   STR <span class="k">=</span> <span class="s">"string"</span></td></tr><tr><td class="line">42</td><td class="hits"></td><td class="source">        <span class="k">,</span>   OTHER <span class="k">=</span> <span class="s">"other"</span></td></tr><tr><td class="line">43</td><td class="hits"></td><td class="source">        <span class="k">;</span></td></tr><tr><td class="line">44</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">45</td><td class="hits">47</td><td class="source">        <span class="k">var</span> WebIDLParseError <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>str<span class="k">,</span> line<span class="k">,</span> input<span class="k">,</span> tokens<span class="k">)</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">46</td><td class="hits">0</td><td class="source">            <span class="k">this</span><span class="k">.</span>message <span class="k">=</span> str<span class="k">;</span></td></tr><tr class="miss"> <td class="line">47</td><td class="hits">0</td><td class="source">            <span class="k">this</span><span class="k">.</span>line <span class="k">=</span> line<span class="k">;</span></td></tr><tr class="miss"> <td class="line">48</td><td class="hits">0</td><td class="source">            <span class="k">this</span><span class="k">.</span>input <span class="k">=</span> input<span class="k">;</span></td></tr><tr class="miss"> <td class="line">49</td><td class="hits">0</td><td class="source">            <span class="k">this</span><span class="k">.</span>tokens <span class="k">=</span> tokens<span class="k">;</span></td></tr><tr><td class="line">50</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">51</td><td class="hits">47</td><td class="source">        WebIDLParseError<span class="k">.</span>prototype<span class="k">.</span>toString <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">52</td><td class="hits">0</td><td class="source">            <span class="k">return</span> <span class="k">this</span><span class="k">.</span>message <span class="k">+</span> <span class="s">", line "</span> <span class="k">+</span> <span class="k">this</span><span class="k">.</span>line <span class="k">+</span> <span class="s">" (tokens: '"</span> <span class="k">+</span> <span class="k">this</span><span class="k">.</span>input <span class="k">+</span> <span class="s">"')</span><span class="t">\n</span><span class="s">"</span> <span class="k">+</span></td></tr><tr><td class="line">53</td><td class="hits"></td><td class="source">                   JSON<span class="k">.</span>stringify<span class="k">(</span><span class="k">this</span><span class="k">.</span>tokens<span class="k">,</span> <span class="k">null</span><span class="k">,</span> <span class="s">4</span><span class="k">);</span></td></tr><tr><td class="line">54</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">55</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">56</td><td class="hits">47</td><td class="source">        <span class="k">var</span> error <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>str<span class="k">)</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">57</td><td class="hits">0</td><td class="source">            <span class="k">var</span> tok <span class="k">=</span> <span class="s">""</span><span class="k">,</span> numTokens <span class="k">=</span> <span class="s">0</span><span class="k">,</span> maxTokens <span class="k">=</span> <span class="s">5</span><span class="k">;</span></td></tr><tr class="miss"> <td class="line">58</td><td class="hits">0</td><td class="source">            <span class="k">while</span> <span class="k">(</span>numTokens <span class="k"><</span> maxTokens <span class="k">&amp;&amp;</span> tokens<span class="k">.</span>length <span class="k">></span> numTokens<span class="k">)</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">59</td><td class="hits">0</td><td class="source">                tok <span class="k">+=</span> tokens<span class="k">[</span>numTokens<span class="k">].</span>value<span class="k">;</span></td></tr><tr class="miss"> <td class="line">60</td><td class="hits">0</td><td class="source">                numTokens<span class="k">++;</span></td></tr><tr><td class="line">61</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="miss"> <td class="line">62</td><td class="hits">0</td><td class="source">            <span class="k">throw</span> <span class="k">new</span> WebIDLParseError<span class="k">(</span>str<span class="k">,</span> line<span class="k">,</span> tok<span class="k">,</span> tokens<span class="k">.</span>slice<span class="k">(</span><span class="s">0</span><span class="k">,</span> <span class="s">5</span><span class="k">));</span></td></tr><tr><td class="line">63</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">64</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">65</td><td class="hits">47</td><td class="source">        <span class="k">var</span> last_token <span class="k">=</span> <span class="k">null</span><span class="k">;</span></td></tr><tr><td class="line">66</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">67</td><td class="hits">47</td><td class="source">        <span class="k">var</span> consume <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>type<span class="k">,</span> value<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">68</td><td class="hits">8778</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>tokens<span class="k">.</span>length <span class="k">||</span> tokens<span class="k">[</span><span class="s">0</span><span class="k">].</span>type <span class="k">!==</span> type<span class="k">)</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">69</td><td class="hits">5470</td><td class="source">            <span class="k">if</span> <span class="k">(</span><span class="k">typeof</span> value <span class="k">===</span> <span class="s">"undefined"</span> <span class="k">||</span> tokens<span class="k">[</span><span class="s">0</span><span class="k">].</span>value <span class="k">===</span> value<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">70</td><td class="hits">1738</td><td class="source">                 last_token <span class="k">=</span> tokens<span class="k">.</span>shift<span class="k">();</span></td></tr><tr class="hit"> <td class="line">71</td><td class="hits">1738</td><td class="source">                 <span class="k">return</span> last_token<span class="k">;</span></td></tr><tr><td class="line">72</td><td class="hits"></td><td class="source">             <span class="k">}</span></td></tr><tr><td class="line">73</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">74</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">75</td><td class="hits">47</td><td class="source">        <span class="k">var</span> ws <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">76</td><td class="hits">6961</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>tokens<span class="k">.</span>length<span class="k">)</span> <span class="k">return</span><span class="k">;</span></td></tr><tr><td class="line">77</td><td class="hits"></td><td class="source">            <span class="c">// console.log("tokens.length", tokens.length, tokens[0]);</span></td></tr><tr class="hit"> <td class="line">78</td><td class="hits">6115</td><td class="source">            <span class="k">if</span> <span class="k">(</span>tokens<span class="k">[</span><span class="s">0</span><span class="k">].</span>type <span class="k">===</span> <span class="s">"whitespace"</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">79</td><td class="hits">1172</td><td class="source">                <span class="k">var</span> t <span class="k">=</span> tokens<span class="k">.</span>shift<span class="k">();</span></td></tr><tr class="hit"> <td class="line">80</td><td class="hits">2294</td><td class="source">                t<span class="k">.</span>value<span class="k">.</span>replace<span class="k">(</span><span class="s">/\n/g</span><span class="k">,</span> <span class="k">function</span> <span class="k">(</span>m<span class="k">)</span> <span class="k">{</span> line<span class="k">++;</span> <span class="k">return</span> m<span class="k">;</span> <span class="k">}</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">81</td><td class="hits">1172</td><td class="source">                <span class="k">return</span> t<span class="k">;</span></td></tr><tr><td class="line">82</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">83</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">84</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">85</td><td class="hits">47</td><td class="source">        <span class="k">var</span> all_ws <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">86</td><td class="hits">5366</td><td class="source">            <span class="k">var</span> t <span class="k">=</span> <span class="k">{</span> type<span class="k">:</span> <span class="s">"whitespace"</span><span class="k">,</span> value<span class="k">:</span> <span class="s">""</span> <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">87</td><td class="hits">5366</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">88</td><td class="hits">6538</td><td class="source">                <span class="k">var</span> w <span class="k">=</span> ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">89</td><td class="hits">11904</td><td class="source">                <span class="k">if</span> <span class="k">(!</span>w<span class="k">)</span> <span class="k">break</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">90</td><td class="hits">1172</td><td class="source">                t<span class="k">.</span>value <span class="k">+=</span> w<span class="k">.</span>value<span class="k">;</span></td></tr><tr><td class="line">91</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">92</td><td class="hits">6538</td><td class="source">            <span class="k">if</span> <span class="k">(</span>t<span class="k">.</span>value<span class="k">.</span>length <span class="k">></span> <span class="s">0</span><span class="k">)</span> <span class="k">return</span> t<span class="k">;</span></td></tr><tr><td class="line">93</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">94</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">95</td><td class="hits">47</td><td class="source">        <span class="k">var</span> integer_type <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">96</td><td class="hits">273</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="s">""</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">97</td><td class="hits">273</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">98</td><td class="hits">312</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"unsigned"</span><span class="k">))</span> ret <span class="k">=</span> <span class="s">"unsigned "</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">99</td><td class="hits">273</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">100</td><td class="hits">287</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"short"</span><span class="k">))</span> <span class="k">return</span> ret <span class="k">+</span> <span class="s">"short"</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">101</td><td class="hits">259</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"long"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">102</td><td class="hits">41</td><td class="source">                ret <span class="k">+=</span> <span class="s">"long"</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">103</td><td class="hits">41</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">104</td><td class="hits">43</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"long"</span><span class="k">))</span> <span class="k">return</span> ret <span class="k">+</span> <span class="s">" long"</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">105</td><td class="hits">39</td><td class="source">                <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">106</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">107</td><td class="hits">218</td><td class="source">            <span class="k">if</span> <span class="k">(</span>ret<span class="k">)</span> error<span class="k">(</span><span class="s">"Failed to parse integer type"</span><span class="k">);</span></td></tr><tr><td class="line">108</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">109</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">110</td><td class="hits">47</td><td class="source">        <span class="k">var</span> float_type <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">111</td><td class="hits">218</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="s">""</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">112</td><td class="hits">218</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">113</td><td class="hits">222</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"unrestricted"</span><span class="k">))</span> ret <span class="k">=</span> <span class="s">"unrestricted "</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">114</td><td class="hits">218</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">115</td><td class="hits">257</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"float"</span><span class="k">))</span> <span class="k">return</span> ret <span class="k">+</span> <span class="s">"float"</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">116</td><td class="hits">182</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"double"</span><span class="k">))</span> <span class="k">return</span> ret <span class="k">+</span> <span class="s">"double"</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">117</td><td class="hits">176</td><td class="source">            <span class="k">if</span> <span class="k">(</span>ret<span class="k">)</span> error<span class="k">(</span><span class="s">"Failed to parse float type"</span><span class="k">);</span></td></tr><tr><td class="line">118</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">119</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">120</td><td class="hits">47</td><td class="source">        <span class="k">var</span> primitive_type <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">121</td><td class="hits">273</td><td class="source">            <span class="k">var</span> num_type <span class="k">=</span> integer_type<span class="k">()</span> <span class="k">||</span> float_type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">122</td><td class="hits">370</td><td class="source">            <span class="k">if</span> <span class="k">(</span>num_type<span class="k">)</span> <span class="k">return</span> num_type<span class="k">;</span></td></tr><tr class="hit"> <td class="line">123</td><td class="hits">176</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">124</td><td class="hits">186</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"boolean"</span><span class="k">))</span> <span class="k">return</span> <span class="s">"boolean"</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">125</td><td class="hits">167</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"byte"</span><span class="k">))</span> <span class="k">return</span> <span class="s">"byte"</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">126</td><td class="hits">168</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"octet"</span><span class="k">))</span> <span class="k">return</span> <span class="s">"octet"</span><span class="k">;</span></td></tr><tr><td class="line">127</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">128</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">129</td><td class="hits">47</td><td class="source">        <span class="k">var</span> const_value <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">130</td><td class="hits">17</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"true"</span><span class="k">))</span> <span class="k">return</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">131</td><td class="hits">19</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"false"</span><span class="k">))</span> <span class="k">return</span> <span class="k">false</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">132</td><td class="hits">17</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"null"</span><span class="k">))</span> <span class="k">return</span> <span class="k">null</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">133</td><td class="hits">14</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"Infinity"</span><span class="k">))</span> <span class="k">return</span> Infinity<span class="k">;</span></td></tr><tr class="hit"> <td class="line">134</td><td class="hits">13</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"NaN"</span><span class="k">))</span> <span class="k">return</span> NaN<span class="k">;</span></td></tr><tr class="hit"> <td class="line">135</td><td class="hits">11</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> consume<span class="k">(</span>FLOAT<span class="k">)</span> <span class="k">||</span> consume<span class="k">(</span>INT<span class="k">);</span></td></tr><tr class="hit"> <td class="line">136</td><td class="hits">19</td><td class="source">            <span class="k">if</span> <span class="k">(</span>ret<span class="k">)</span> <span class="k">return</span> <span class="s">1</span> <span class="k">*</span> ret<span class="k">.</span>value<span class="k">;</span></td></tr><tr class="hit"> <td class="line">137</td><td class="hits">3</td><td class="source">            <span class="k">var</span> tok <span class="k">=</span> consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"-"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">138</td><td class="hits">3</td><td class="source">            <span class="k">if</span> <span class="k">(</span>tok<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">139</td><td class="hits">2</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"Infinity"</span><span class="k">))</span> <span class="k">return</span> <span class="k">-</span>Infinity<span class="k">;</span></td></tr><tr class="miss"> <td class="line">140</td><td class="hits">0</td><td class="source">                <span class="k">else</span> tokens<span class="k">.</span>unshift<span class="k">(</span>tok<span class="k">);</span></td></tr><tr><td class="line">141</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">142</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">143</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">144</td><td class="hits">47</td><td class="source">        <span class="k">var</span> type_suffix <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>obj<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">145</td><td class="hits">249</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">146</td><td class="hits">263</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">147</td><td class="hits">263</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"?"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">148</td><td class="hits">11</td><td class="source">                    <span class="k">if</span> <span class="k">(</span>obj<span class="k">.</span>nullable<span class="k">)</span> error<span class="k">(</span><span class="s">"Can't nullable more than once"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">149</td><td class="hits">11</td><td class="source">                    obj<span class="k">.</span>nullable <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr><td class="line">150</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">151</td><td class="hits">252</td><td class="source">                <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"["</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">152</td><td class="hits">3</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">153</td><td class="hits">3</td><td class="source">                    consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"]"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated array type"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">154</td><td class="hits">5</td><td class="source">                    <span class="k">if</span> <span class="k">(!</span>obj<span class="k">.</span>array<span class="k">)</span> obj<span class="k">.</span>array <span class="k">=</span> <span class="s">1</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">155</td><td class="hits">1</td><td class="source">                    <span class="k">else</span> obj<span class="k">.</span>array<span class="k">++;</span></td></tr><tr><td class="line">156</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">157</td><td class="hits">249</td><td class="source">                <span class="k">else</span> <span class="k">return</span><span class="k">;</span></td></tr><tr><td class="line">158</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">159</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">160</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">161</td><td class="hits">47</td><td class="source">        <span class="k">var</span> single_type <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">162</td><td class="hits">261</td><td class="source">            <span class="k">var</span> prim <span class="k">=</span> primitive_type<span class="k">()</span></td></tr><tr><td class="line">163</td><td class="hits"></td><td class="source">            <span class="k">,</span>   ret <span class="k">=</span> <span class="k">{</span> sequence<span class="k">:</span> <span class="k">false</span><span class="k">,</span> nullable<span class="k">:</span> <span class="k">false</span><span class="k">,</span> array<span class="k">:</span> <span class="k">false</span><span class="k">,</span> union<span class="k">:</span> <span class="k">false</span> <span class="k">}</span></td></tr><tr><td class="line">164</td><td class="hits"></td><td class="source">            <span class="k">;</span></td></tr><tr class="hit"> <td class="line">165</td><td class="hits">261</td><td class="source">            <span class="k">if</span> <span class="k">(</span>prim<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">166</td><td class="hits">99</td><td class="source">                ret<span class="k">.</span>idlType <span class="k">=</span> prim<span class="k">;</span></td></tr><tr><td class="line">167</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">168</td><td class="hits">162</td><td class="source">            <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"sequence"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">169</td><td class="hits">4</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">170</td><td class="hits">4</td><td class="source">                <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"<"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">171</td><td class="hits">0</td><td class="source">                    ret<span class="k">.</span>idlType <span class="k">=</span> <span class="s">"sequence"</span><span class="k">;</span></td></tr><tr><td class="line">172</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">173</td><td class="hits"></td><td class="source">                <span class="k">else</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">174</td><td class="hits">4</td><td class="source">                    ret<span class="k">.</span>sequence <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">175</td><td class="hits">4</td><td class="source">                    ret<span class="k">.</span>idlType <span class="k">=</span> type<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Error parsing sequence type"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">176</td><td class="hits">4</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">177</td><td class="hits">4</td><td class="source">                    <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">">"</span><span class="k">))</span> error<span class="k">(</span><span class="s">"Unterminated sequence"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">178</td><td class="hits">4</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">179</td><td class="hits">5</td><td class="source">                    <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"?"</span><span class="k">))</span> ret<span class="k">.</span>nullable <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">180</td><td class="hits">4</td><td class="source">                    <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">181</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">182</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">183</td><td class="hits"></td><td class="source">            <span class="k">else</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">184</td><td class="hits">158</td><td class="source">                <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">);</span></td></tr><tr class="hit"> <td class="line">185</td><td class="hits">169</td><td class="source">                <span class="k">if</span> <span class="k">(!</span>name<span class="k">)</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">186</td><td class="hits">147</td><td class="source">                ret<span class="k">.</span>idlType <span class="k">=</span> name<span class="k">.</span>value<span class="k">;</span></td></tr><tr><td class="line">187</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">188</td><td class="hits">246</td><td class="source">            type_suffix<span class="k">(</span>ret<span class="k">);</span></td></tr><tr class="hit"> <td class="line">189</td><td class="hits">246</td><td class="source">            <span class="k">if</span> <span class="k">(</span>ret<span class="k">.</span>nullable <span class="k">&amp;&amp;</span> ret<span class="k">.</span>idlType <span class="k">===</span> <span class="s">"any"</span><span class="k">)</span> error<span class="k">(</span><span class="s">"Type any cannot be made nullable"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">190</td><td class="hits">246</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">191</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">192</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">193</td><td class="hits">47</td><td class="source">        <span class="k">var</span> union_type <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">194</td><td class="hits">11</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">195</td><td class="hits">19</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"("</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">196</td><td class="hits">3</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span> sequence<span class="k">:</span> <span class="k">false</span><span class="k">,</span> nullable<span class="k">:</span> <span class="k">false</span><span class="k">,</span> array<span class="k">:</span> <span class="k">false</span><span class="k">,</span> union<span class="k">:</span> <span class="k">true</span><span class="k">,</span> idlType<span class="k">:</span> <span class="k">[]</span> <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">197</td><td class="hits">3</td><td class="source">            <span class="k">var</span> fst <span class="k">=</span> type<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Union type with no content"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">198</td><td class="hits">3</td><td class="source">            ret<span class="k">.</span>idlType<span class="k">.</span>push<span class="k">(</span>fst<span class="k">);</span></td></tr><tr class="hit"> <td class="line">199</td><td class="hits">3</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">200</td><td class="hits">7</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">201</td><td class="hits">10</td><td class="source">                <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"or"</span><span class="k">))</span> <span class="k">break</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">202</td><td class="hits">4</td><td class="source">                <span class="k">var</span> typ <span class="k">=</span> type<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No type after 'or' in union type"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">203</td><td class="hits">4</td><td class="source">                ret<span class="k">.</span>idlType<span class="k">.</span>push<span class="k">(</span>typ<span class="k">);</span></td></tr><tr><td class="line">204</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">205</td><td class="hits">3</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">")"</span><span class="k">))</span> error<span class="k">(</span><span class="s">"Unterminated union type"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">206</td><td class="hits">3</td><td class="source">            type_suffix<span class="k">(</span>ret<span class="k">);</span></td></tr><tr class="hit"> <td class="line">207</td><td class="hits">3</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">208</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">209</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">210</td><td class="hits">47</td><td class="source">        <span class="k">var</span> type <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">211</td><td class="hits">261</td><td class="source">            <span class="k">return</span> single_type<span class="k">()</span> <span class="k">||</span> union_type<span class="k">();</span></td></tr><tr><td class="line">212</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">213</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">214</td><td class="hits">47</td><td class="source">        <span class="k">var</span> argument <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">215</td><td class="hits">79</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span> optional<span class="k">:</span> <span class="k">false</span><span class="k">,</span> variadic<span class="k">:</span> <span class="k">false</span> <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">216</td><td class="hits">79</td><td class="source">            ret<span class="k">.</span>extAttrs <span class="k">=</span> extended_attrs<span class="k">();</span></td></tr><tr class="hit"> <td class="line">217</td><td class="hits">79</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">218</td><td class="hits">79</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"optional"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">219</td><td class="hits">2</td><td class="source">                ret<span class="k">.</span>optional <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">220</td><td class="hits">2</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr><td class="line">221</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">222</td><td class="hits">79</td><td class="source">            ret<span class="k">.</span>type <span class="k">=</span> type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">223</td><td class="hits">87</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>ret<span class="k">.</span>type<span class="k">)</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">224</td><td class="hits">71</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>ret<span class="k">.</span>optional<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">225</td><td class="hits">69</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">226</td><td class="hits">69</td><td class="source">                <span class="k">if</span> <span class="k">(</span>tokens<span class="k">.</span>length <span class="k">>=</span> <span class="s">3</span> <span class="k">&amp;&amp;</span></td></tr><tr><td class="line">227</td><td class="hits"></td><td class="source">                    tokens<span class="k">[</span><span class="s">0</span><span class="k">].</span>type <span class="k">===</span> <span class="s">"other"</span> <span class="k">&amp;&amp;</span> tokens<span class="k">[</span><span class="s">0</span><span class="k">].</span>value <span class="k">===</span> <span class="s">"."</span> <span class="k">&amp;&amp;</span></td></tr><tr><td class="line">228</td><td class="hits"></td><td class="source">                    tokens<span class="k">[</span><span class="s">1</span><span class="k">].</span>type <span class="k">===</span> <span class="s">"other"</span> <span class="k">&amp;&amp;</span> tokens<span class="k">[</span><span class="s">1</span><span class="k">].</span>value <span class="k">===</span> <span class="s">"."</span> <span class="k">&amp;&amp;</span></td></tr><tr><td class="line">229</td><td class="hits"></td><td class="source">                    tokens<span class="k">[</span><span class="s">2</span><span class="k">].</span>type <span class="k">===</span> <span class="s">"other"</span> <span class="k">&amp;&amp;</span> tokens<span class="k">[</span><span class="s">2</span><span class="k">].</span>value <span class="k">===</span> <span class="s">"."</span></td></tr><tr><td class="line">230</td><td class="hits"></td><td class="source">                    <span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">231</td><td class="hits">4</td><td class="source">                    tokens<span class="k">.</span>shift<span class="k">();</span></td></tr><tr class="hit"> <td class="line">232</td><td class="hits">4</td><td class="source">                    tokens<span class="k">.</span>shift<span class="k">();</span></td></tr><tr class="hit"> <td class="line">233</td><td class="hits">4</td><td class="source">                    tokens<span class="k">.</span>shift<span class="k">();</span></td></tr><tr class="hit"> <td class="line">234</td><td class="hits">4</td><td class="source">                    ret<span class="k">.</span>variadic <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr><td class="line">235</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">236</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">237</td><td class="hits">71</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">238</td><td class="hits">71</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name in argument"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">239</td><td class="hits">71</td><td class="source">            ret<span class="k">.</span>name <span class="k">=</span> name<span class="k">.</span>value<span class="k">;</span></td></tr><tr class="hit"> <td class="line">240</td><td class="hits">71</td><td class="source">            <span class="k">if</span> <span class="k">(</span>ret<span class="k">.</span>optional<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">241</td><td class="hits">2</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">242</td><td class="hits">2</td><td class="source">                ret<span class="k">[</span><span class="s">"default"</span><span class="k">]</span> <span class="k">=</span> default_<span class="k">();</span></td></tr><tr><td class="line">243</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">244</td><td class="hits">71</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">245</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">246</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">247</td><td class="hits">47</td><td class="source">        <span class="k">var</span> argument_list <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">248</td><td class="hits">59</td><td class="source">            <span class="k">var</span> arg <span class="k">=</span> argument<span class="k">(),</span> ret <span class="k">=</span> <span class="k">[];</span></td></tr><tr class="hit"> <td class="line">249</td><td class="hits">67</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>arg<span class="k">)</span> <span class="k">return</span> ret<span class="k">;</span></td></tr><tr class="hit"> <td class="line">250</td><td class="hits">51</td><td class="source">            ret<span class="k">.</span>push<span class="k">(</span>arg<span class="k">);</span></td></tr><tr class="hit"> <td class="line">251</td><td class="hits">51</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">252</td><td class="hits">71</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">253</td><td class="hits">122</td><td class="source">                <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">","</span><span class="k">))</span> <span class="k">return</span> ret<span class="k">;</span></td></tr><tr class="hit"> <td class="line">254</td><td class="hits">20</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">255</td><td class="hits">20</td><td class="source">                <span class="k">var</span> nxt <span class="k">=</span> argument<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Trailing comma in arguments list"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">256</td><td class="hits">20</td><td class="source">                ret<span class="k">.</span>push<span class="k">(</span>nxt<span class="k">);</span></td></tr><tr><td class="line">257</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">258</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">259</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">260</td><td class="hits">47</td><td class="source">        <span class="k">var</span> simple_extended_attr <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">261</td><td class="hits">17</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">262</td><td class="hits">17</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">);</span></td></tr><tr class="hit"> <td class="line">263</td><td class="hits">17</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>name<span class="k">)</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">264</td><td class="hits">17</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">265</td><td class="hits"></td><td class="source">                name<span class="k">:</span> name<span class="k">.</span>value</td></tr><tr><td class="line">266</td><td class="hits"></td><td class="source">            <span class="k">,</span>   <span class="s">"arguments"</span><span class="k">:</span> <span class="k">null</span></td></tr><tr><td class="line">267</td><td class="hits"></td><td class="source">            <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">268</td><td class="hits">17</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">269</td><td class="hits">17</td><td class="source">            <span class="k">var</span> eq <span class="k">=</span> consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"="</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">270</td><td class="hits">17</td><td class="source">            <span class="k">if</span> <span class="k">(</span>eq<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">271</td><td class="hits">5</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">272</td><td class="hits">5</td><td class="source">                ret<span class="k">.</span>rhs <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">);</span></td></tr><tr class="hit"> <td class="line">273</td><td class="hits">5</td><td class="source">                <span class="k">if</span> <span class="k">(!</span>ret<span class="k">.</span>rhs<span class="k">)</span> <span class="k">return</span> error<span class="k">(</span><span class="s">"No right hand side to extended attribute assignment"</span><span class="k">);</span></td></tr><tr><td class="line">274</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">275</td><td class="hits">17</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">276</td><td class="hits">17</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"("</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">277</td><td class="hits">2</td><td class="source">                ret<span class="k">[</span><span class="s">"arguments"</span><span class="k">]</span> <span class="k">=</span> argument_list<span class="k">();</span></td></tr><tr class="hit"> <td class="line">278</td><td class="hits">2</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">279</td><td class="hits">2</td><td class="source">                consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">")"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unclosed argument in extended attribute"</span><span class="k">);</span></td></tr><tr><td class="line">280</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">281</td><td class="hits">17</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">282</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">283</td><td class="hits"></td><td class="source">        </td></tr><tr><td class="line">284</td><td class="hits"></td><td class="source">        <span class="c">// Note: we parse something simpler than the official syntax. It's all that ever</span></td></tr><tr><td class="line">285</td><td class="hits"></td><td class="source">        <span class="c">// seems to be used</span></td></tr><tr class="hit"> <td class="line">286</td><td class="hits">47</td><td class="source">        <span class="k">var</span> extended_attrs <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">287</td><td class="hits">415</td><td class="source">            <span class="k">var</span> eas <span class="k">=</span> <span class="k">[];</span></td></tr><tr class="hit"> <td class="line">288</td><td class="hits">415</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">289</td><td class="hits">815</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"["</span><span class="k">))</span> <span class="k">return</span> eas<span class="k">;</span></td></tr><tr class="hit"> <td class="line">290</td><td class="hits">15</td><td class="source">            eas<span class="k">[</span><span class="s">0</span><span class="k">]</span> <span class="k">=</span> simple_extended_attr<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Extended attribute with not content"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">291</td><td class="hits">15</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">292</td><td class="hits">15</td><td class="source">            <span class="k">while</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">","</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">293</td><td class="hits">2</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">294</td><td class="hits">2</td><td class="source">                eas<span class="k">.</span>push<span class="k">(</span>simple_extended_attr<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Trailing comma in extended attribute"</span><span class="k">));</span></td></tr><tr class="hit"> <td class="line">295</td><td class="hits">2</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr><td class="line">296</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">297</td><td class="hits">15</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"]"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No end of extended attribute"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">298</td><td class="hits">15</td><td class="source">            <span class="k">return</span> eas<span class="k">;</span></td></tr><tr><td class="line">299</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">300</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">301</td><td class="hits">47</td><td class="source">        <span class="k">var</span> default_ <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">302</td><td class="hits">11</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">303</td><td class="hits">11</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"="</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">304</td><td class="hits">5</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">305</td><td class="hits">5</td><td class="source">                <span class="k">var</span> def <span class="k">=</span> const_value<span class="k">();</span></td></tr><tr class="hit"> <td class="line">306</td><td class="hits">5</td><td class="source">                <span class="k">if</span> <span class="k">(</span><span class="k">typeof</span> def <span class="k">!==</span> <span class="s">"undefined"</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">307</td><td class="hits">3</td><td class="source">                    <span class="k">return</span> def<span class="k">;</span></td></tr><tr><td class="line">308</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">309</td><td class="hits"></td><td class="source">                <span class="k">else</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">310</td><td class="hits">2</td><td class="source">                    <span class="k">var</span> str <span class="k">=</span> consume<span class="k">(</span>STR<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No value for default"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">311</td><td class="hits">2</td><td class="source">                    <span class="k">return</span> str<span class="k">;</span></td></tr><tr><td class="line">312</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">313</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">314</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">315</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">316</td><td class="hits">47</td><td class="source">        <span class="k">var</span> const_ <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">317</td><td class="hits">180</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">318</td><td class="hits">348</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"const"</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">319</td><td class="hits">12</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span> type<span class="k">:</span> <span class="s">"const"</span><span class="k">,</span> nullable<span class="k">:</span> <span class="k">false</span> <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">320</td><td class="hits">12</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">321</td><td class="hits">12</td><td class="source">            <span class="k">var</span> typ <span class="k">=</span> primitive_type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">322</td><td class="hits">12</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>typ<span class="k">)</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">323</td><td class="hits">0</td><td class="source">                typ <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No type for const"</span><span class="k">);</span></td></tr><tr class="miss"> <td class="line">324</td><td class="hits">0</td><td class="source">                typ <span class="k">=</span> typ<span class="k">.</span>value<span class="k">;</span></td></tr><tr><td class="line">325</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">326</td><td class="hits">12</td><td class="source">            ret<span class="k">.</span>idlType <span class="k">=</span> typ<span class="k">;</span></td></tr><tr class="hit"> <td class="line">327</td><td class="hits">12</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">328</td><td class="hits">12</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"?"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">329</td><td class="hits">1</td><td class="source">                ret<span class="k">.</span>nullable <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">330</td><td class="hits">1</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr><td class="line">331</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">332</td><td class="hits">12</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name for const"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">333</td><td class="hits">12</td><td class="source">            ret<span class="k">.</span>name <span class="k">=</span> name<span class="k">.</span>value<span class="k">;</span></td></tr><tr class="hit"> <td class="line">334</td><td class="hits">12</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">335</td><td class="hits">12</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"="</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No value assignment for const"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">336</td><td class="hits">12</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">337</td><td class="hits">12</td><td class="source">            <span class="k">var</span> cnt <span class="k">=</span> const_value<span class="k">();</span></td></tr><tr class="hit"> <td class="line">338</td><td class="hits">24</td><td class="source">            <span class="k">if</span> <span class="k">(</span><span class="k">typeof</span> cnt <span class="k">!==</span> <span class="s">"undefined"</span><span class="k">)</span> ret<span class="k">.</span>value <span class="k">=</span> cnt<span class="k">;</span></td></tr><tr class="miss"> <td class="line">339</td><td class="hits">0</td><td class="source">            <span class="k">else</span> error<span class="k">(</span><span class="s">"No value for const"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">340</td><td class="hits">12</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">341</td><td class="hits">12</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated const"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">342</td><td class="hits">12</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">343</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">344</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">345</td><td class="hits">47</td><td class="source">        <span class="k">var</span> inheritance <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">346</td><td class="hits">89</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">347</td><td class="hits">89</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">":"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">348</td><td class="hits">9</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">349</td><td class="hits">9</td><td class="source">                <span class="k">var</span> inh <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error <span class="k">(</span><span class="s">"No type in inheritance"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">350</td><td class="hits">9</td><td class="source">                <span class="k">return</span> inh<span class="k">.</span>value<span class="k">;</span></td></tr><tr><td class="line">351</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">352</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">353</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">354</td><td class="hits">47</td><td class="source">        <span class="k">var</span> operation_rest <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>ret<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">355</td><td class="hits">56</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">356</td><td class="hits">57</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>ret<span class="k">)</span> ret <span class="k">=</span> <span class="k">{}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">357</td><td class="hits">56</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">);</span></td></tr><tr class="hit"> <td class="line">358</td><td class="hits">56</td><td class="source">            ret<span class="k">.</span>name <span class="k">=</span> name <span class="k">?</span> name<span class="k">.</span>value <span class="k">:</span> <span class="k">null</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">359</td><td class="hits">56</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">360</td><td class="hits">56</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"("</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Invalid operation"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">361</td><td class="hits">56</td><td class="source">            ret<span class="k">[</span><span class="s">"arguments"</span><span class="k">]</span> <span class="k">=</span> argument_list<span class="k">();</span></td></tr><tr class="hit"> <td class="line">362</td><td class="hits">56</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">363</td><td class="hits">56</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">")"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated operation"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">364</td><td class="hits">56</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">365</td><td class="hits">56</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated operation"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">366</td><td class="hits">56</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">367</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">368</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">369</td><td class="hits">47</td><td class="source">        <span class="k">var</span> callback <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">370</td><td class="hits">144</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">371</td><td class="hits">144</td><td class="source">            <span class="k">var</span> ret<span class="k">;</span></td></tr><tr class="hit"> <td class="line">372</td><td class="hits">286</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"callback"</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">373</td><td class="hits">2</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">374</td><td class="hits">2</td><td class="source">            <span class="k">var</span> tok <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"interface"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">375</td><td class="hits">2</td><td class="source">            <span class="k">if</span> <span class="k">(</span>tok<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">376</td><td class="hits">1</td><td class="source">                tokens<span class="k">.</span>unshift<span class="k">(</span>tok<span class="k">);</span></td></tr><tr class="hit"> <td class="line">377</td><td class="hits">1</td><td class="source">                ret <span class="k">=</span> interface_<span class="k">();</span></td></tr><tr class="hit"> <td class="line">378</td><td class="hits">1</td><td class="source">                ret<span class="k">.</span>type <span class="k">=</span> <span class="s">"callback interface"</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">379</td><td class="hits">1</td><td class="source">                <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">380</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">381</td><td class="hits">1</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name for callback"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">382</td><td class="hits">1</td><td class="source">            ret <span class="k">=</span> <span class="k">{</span> type<span class="k">:</span> <span class="s">"callback"</span><span class="k">,</span> name<span class="k">:</span> name<span class="k">.</span>value <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">383</td><td class="hits">1</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">384</td><td class="hits">1</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"="</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No assignment in callback"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">385</td><td class="hits">1</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">386</td><td class="hits">1</td><td class="source">            ret<span class="k">.</span>idlType <span class="k">=</span> return_type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">387</td><td class="hits">1</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">388</td><td class="hits">1</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"("</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No arguments in callback"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">389</td><td class="hits">1</td><td class="source">            ret<span class="k">[</span><span class="s">"arguments"</span><span class="k">]</span> <span class="k">=</span> argument_list<span class="k">();</span></td></tr><tr class="hit"> <td class="line">390</td><td class="hits">1</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">391</td><td class="hits">1</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">")"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated callback"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">392</td><td class="hits">1</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">393</td><td class="hits">1</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated callback"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">394</td><td class="hits">1</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">395</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">396</td><td class="hits"></td><td class="source"> </td></tr><tr class="hit"> <td class="line">397</td><td class="hits">47</td><td class="source">        <span class="k">var</span> attribute <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">398</td><td class="hits">154</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">399</td><td class="hits">154</td><td class="source">            <span class="k">var</span> grabbed <span class="k">=</span> <span class="k">[]</span></td></tr><tr><td class="line">400</td><td class="hits"></td><td class="source">            <span class="k">,</span>   ret <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">401</td><td class="hits"></td><td class="source">                type<span class="k">:</span>           <span class="s">"attribute"</span></td></tr><tr><td class="line">402</td><td class="hits"></td><td class="source">            <span class="k">,</span>   <span class="s">"static"</span><span class="k">:</span>       <span class="k">false</span></td></tr><tr><td class="line">403</td><td class="hits"></td><td class="source">            <span class="k">,</span>   stringifier<span class="k">:</span>    <span class="k">false</span></td></tr><tr><td class="line">404</td><td class="hits"></td><td class="source">            <span class="k">,</span>   inherit<span class="k">:</span>        <span class="k">false</span></td></tr><tr><td class="line">405</td><td class="hits"></td><td class="source">            <span class="k">,</span>   readonly<span class="k">:</span>       <span class="k">false</span></td></tr><tr><td class="line">406</td><td class="hits"></td><td class="source">            <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">407</td><td class="hits">154</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"static"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">408</td><td class="hits">2</td><td class="source">                ret<span class="k">[</span><span class="s">"static"</span><span class="k">]</span> <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">409</td><td class="hits">2</td><td class="source">                grabbed<span class="k">.</span>push<span class="k">(</span>last_token<span class="k">);</span></td></tr><tr><td class="line">410</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">411</td><td class="hits">152</td><td class="source">            <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"stringifier"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">412</td><td class="hits">4</td><td class="source">                ret<span class="k">.</span>stringifier <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">413</td><td class="hits">4</td><td class="source">                grabbed<span class="k">.</span>push<span class="k">(</span>last_token<span class="k">);</span></td></tr><tr><td class="line">414</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">415</td><td class="hits">154</td><td class="source">            <span class="k">var</span> w <span class="k">=</span> all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">416</td><td class="hits">159</td><td class="source">            <span class="k">if</span> <span class="k">(</span>w<span class="k">)</span> grabbed<span class="k">.</span>push<span class="k">(</span>w<span class="k">);</span></td></tr><tr class="hit"> <td class="line">417</td><td class="hits">154</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"inherit"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">418</td><td class="hits">1</td><td class="source">                <span class="k">if</span> <span class="k">(</span>ret<span class="k">[</span><span class="s">"static"</span><span class="k">]</span> <span class="k">||</span> ret<span class="k">.</span>stringifier<span class="k">)</span> error<span class="k">(</span><span class="s">"Cannot have a static or stringifier inherit"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">419</td><td class="hits">1</td><td class="source">                ret<span class="k">.</span>inherit <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">420</td><td class="hits">1</td><td class="source">                grabbed<span class="k">.</span>push<span class="k">(</span>last_token<span class="k">);</span></td></tr><tr class="hit"> <td class="line">421</td><td class="hits">1</td><td class="source">                <span class="k">var</span> w <span class="k">=</span> all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">422</td><td class="hits">2</td><td class="source">                <span class="k">if</span> <span class="k">(</span>w<span class="k">)</span> grabbed<span class="k">.</span>push<span class="k">(</span>w<span class="k">);</span></td></tr><tr><td class="line">423</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">424</td><td class="hits">154</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"readonly"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">425</td><td class="hits">32</td><td class="source">                ret<span class="k">.</span>readonly <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">426</td><td class="hits">32</td><td class="source">                grabbed<span class="k">.</span>push<span class="k">(</span>last_token<span class="k">);</span></td></tr><tr class="hit"> <td class="line">427</td><td class="hits">32</td><td class="source">                <span class="k">var</span> w <span class="k">=</span> all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">428</td><td class="hits">64</td><td class="source">                <span class="k">if</span> <span class="k">(</span>w<span class="k">)</span> grabbed<span class="k">.</span>push<span class="k">(</span>w<span class="k">);</span></td></tr><tr><td class="line">429</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">430</td><td class="hits">154</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"attribute"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">431</td><td class="hits">60</td><td class="source">                tokens <span class="k">=</span> grabbed<span class="k">.</span>concat<span class="k">(</span>tokens<span class="k">);</span></td></tr><tr class="hit"> <td class="line">432</td><td class="hits">60</td><td class="source">                <span class="k">return</span><span class="k">;</span></td></tr><tr><td class="line">433</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">434</td><td class="hits">94</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">435</td><td class="hits">94</td><td class="source">            ret<span class="k">.</span>idlType <span class="k">=</span> type<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No type in attribute"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">436</td><td class="hits">94</td><td class="source">            <span class="k">if</span> <span class="k">(</span>ret<span class="k">.</span>idlType<span class="k">.</span>sequence<span class="k">)</span> error<span class="k">(</span><span class="s">"Attributes cannot accept sequence types"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">437</td><td class="hits">94</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">438</td><td class="hits">94</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name in attribute"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">439</td><td class="hits">94</td><td class="source">            ret<span class="k">.</span>name <span class="k">=</span> name<span class="k">.</span>value<span class="k">;</span></td></tr><tr class="hit"> <td class="line">440</td><td class="hits">94</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">441</td><td class="hits">94</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated attribute"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">442</td><td class="hits">94</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">443</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">444</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">445</td><td class="hits">47</td><td class="source">        <span class="k">var</span> return_type <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">446</td><td class="hits">61</td><td class="source">            <span class="k">var</span> typ <span class="k">=</span> type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">447</td><td class="hits">61</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>typ<span class="k">)</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">448</td><td class="hits">0</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"void"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">449</td><td class="hits">0</td><td class="source">                    <span class="k">return</span> <span class="s">"void"</span><span class="k">;</span></td></tr><tr><td class="line">450</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="miss"> <td class="line">451</td><td class="hits">0</td><td class="source">                <span class="k">else</span> error<span class="k">(</span><span class="s">"No return type"</span><span class="k">);</span></td></tr><tr><td class="line">452</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">453</td><td class="hits">61</td><td class="source">            <span class="k">return</span> typ<span class="k">;</span></td></tr><tr><td class="line">454</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">455</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">456</td><td class="hits">47</td><td class="source">        <span class="k">var</span> operation <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">457</td><td class="hits">60</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">458</td><td class="hits">60</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">459</td><td class="hits"></td><td class="source">                type<span class="k">:</span>           <span class="s">"operation"</span></td></tr><tr><td class="line">460</td><td class="hits"></td><td class="source">            <span class="k">,</span>   getter<span class="k">:</span>         <span class="k">false</span></td></tr><tr><td class="line">461</td><td class="hits"></td><td class="source">            <span class="k">,</span>   setter<span class="k">:</span>         <span class="k">false</span></td></tr><tr><td class="line">462</td><td class="hits"></td><td class="source">            <span class="k">,</span>   creator<span class="k">:</span>        <span class="k">false</span></td></tr><tr><td class="line">463</td><td class="hits"></td><td class="source">            <span class="k">,</span>   deleter<span class="k">:</span>        <span class="k">false</span></td></tr><tr><td class="line">464</td><td class="hits"></td><td class="source">            <span class="k">,</span>   legacycaller<span class="k">:</span>   <span class="k">false</span></td></tr><tr><td class="line">465</td><td class="hits"></td><td class="source">            <span class="k">,</span>   <span class="s">"static"</span><span class="k">:</span>       <span class="k">false</span></td></tr><tr><td class="line">466</td><td class="hits"></td><td class="source">            <span class="k">,</span>   stringifier<span class="k">:</span>    <span class="k">false</span></td></tr><tr><td class="line">467</td><td class="hits"></td><td class="source">            <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">468</td><td class="hits">60</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">469</td><td class="hits">78</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">470</td><td class="hits">87</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"getter"</span><span class="k">))</span> ret<span class="k">.</span>getter <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">471</td><td class="hits">74</td><td class="source">                <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"setter"</span><span class="k">))</span> ret<span class="k">.</span>setter <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">472</td><td class="hits">65</td><td class="source">                <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"creator"</span><span class="k">))</span> ret<span class="k">.</span>creator <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">473</td><td class="hits">65</td><td class="source">                <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"deleter"</span><span class="k">))</span> ret<span class="k">.</span>deleter <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">474</td><td class="hits">62</td><td class="source">                <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"legacycaller"</span><span class="k">))</span> ret<span class="k">.</span>legacycaller <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">475</td><td class="hits">60</td><td class="source">                <span class="k">else</span> <span class="k">break</span><span class="k">;</span></td></tr><tr><td class="line">476</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">477</td><td class="hits">60</td><td class="source">            <span class="k">if</span> <span class="k">(</span>ret<span class="k">.</span>getter <span class="k">||</span> ret<span class="k">.</span>setter <span class="k">||</span> ret<span class="k">.</span>creator <span class="k">||</span> ret<span class="k">.</span>deleter <span class="k">||</span> ret<span class="k">.</span>legacycaller<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">478</td><td class="hits">17</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">479</td><td class="hits">17</td><td class="source">                ret<span class="k">.</span>idlType <span class="k">=</span> return_type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">480</td><td class="hits">17</td><td class="source">                operation_rest<span class="k">(</span>ret<span class="k">);</span></td></tr><tr class="hit"> <td class="line">481</td><td class="hits">17</td><td class="source">                <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">482</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">483</td><td class="hits">43</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"static"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">484</td><td class="hits">1</td><td class="source">                ret<span class="k">[</span><span class="s">"static"</span><span class="k">]</span> <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">485</td><td class="hits">1</td><td class="source">                ret<span class="k">.</span>idlType <span class="k">=</span> return_type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">486</td><td class="hits">1</td><td class="source">                operation_rest<span class="k">(</span>ret<span class="k">);</span></td></tr><tr class="hit"> <td class="line">487</td><td class="hits">1</td><td class="source">                <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">488</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">489</td><td class="hits">42</td><td class="source">            <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"stringifier"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">490</td><td class="hits">3</td><td class="source">                ret<span class="k">.</span>stringifier <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">491</td><td class="hits">3</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">492</td><td class="hits">4</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">))</span> <span class="k">return</span> ret<span class="k">;</span></td></tr><tr class="hit"> <td class="line">493</td><td class="hits">2</td><td class="source">                ret<span class="k">.</span>idlType <span class="k">=</span> return_type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">494</td><td class="hits">2</td><td class="source">                operation_rest<span class="k">(</span>ret<span class="k">);</span></td></tr><tr class="hit"> <td class="line">495</td><td class="hits">2</td><td class="source">                <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">496</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">497</td><td class="hits">39</td><td class="source">            ret<span class="k">.</span>idlType <span class="k">=</span> return_type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">498</td><td class="hits">39</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">499</td><td class="hits">39</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"iterator"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">500</td><td class="hits">4</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">501</td><td class="hits">4</td><td class="source">                ret<span class="k">.</span>type <span class="k">=</span> <span class="s">"iterator"</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">502</td><td class="hits">4</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"object"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">503</td><td class="hits">1</td><td class="source">                    ret<span class="k">.</span>iteratorObject <span class="k">=</span> <span class="s">"object"</span><span class="k">;</span></td></tr><tr><td class="line">504</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">505</td><td class="hits">3</td><td class="source">                <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"="</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">506</td><td class="hits">2</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">507</td><td class="hits">2</td><td class="source">                    <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No right hand side in iterator"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">508</td><td class="hits">2</td><td class="source">                    ret<span class="k">.</span>iteratorObject <span class="k">=</span> name<span class="k">.</span>value<span class="k">;</span></td></tr><tr><td class="line">509</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">510</td><td class="hits">4</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">511</td><td class="hits">4</td><td class="source">                consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated iterator"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">512</td><td class="hits">4</td><td class="source">                <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">513</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">514</td><td class="hits"></td><td class="source">            <span class="k">else</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">515</td><td class="hits">35</td><td class="source">                operation_rest<span class="k">(</span>ret<span class="k">);</span></td></tr><tr class="hit"> <td class="line">516</td><td class="hits">35</td><td class="source">                <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">517</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">518</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">519</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">520</td><td class="hits">47</td><td class="source">        <span class="k">var</span> identifiers <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>arr<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">521</td><td class="hits">5</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">522</td><td class="hits">11</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">523</td><td class="hits">11</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">","</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">524</td><td class="hits">6</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">525</td><td class="hits">6</td><td class="source">                    <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Trailing comma in identifiers list"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">526</td><td class="hits">6</td><td class="source">                    arr<span class="k">.</span>push<span class="k">(</span>name<span class="k">.</span>value<span class="k">);</span></td></tr><tr><td class="line">527</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">528</td><td class="hits">5</td><td class="source">                <span class="k">else</span> <span class="k">break</span><span class="k">;</span></td></tr><tr><td class="line">529</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">530</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">531</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">532</td><td class="hits">47</td><td class="source">        <span class="k">var</span> serialiser <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">533</td><td class="hits">164</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">534</td><td class="hits">318</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"serializer"</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">535</td><td class="hits">10</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span> type<span class="k">:</span> <span class="s">"serializer"</span> <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">536</td><td class="hits">10</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">537</td><td class="hits">10</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"="</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">538</td><td class="hits">8</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">539</td><td class="hits">8</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"{"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">540</td><td class="hits">5</td><td class="source">                    ret<span class="k">.</span>patternMap <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">541</td><td class="hits">5</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">542</td><td class="hits">5</td><td class="source">                    <span class="k">var</span> id <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">);</span></td></tr><tr class="hit"> <td class="line">543</td><td class="hits">5</td><td class="source">                    <span class="k">if</span> <span class="k">(</span>id <span class="k">&amp;&amp;</span> id<span class="k">.</span>value <span class="k">===</span> <span class="s">"getter"</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">544</td><td class="hits">1</td><td class="source">                        ret<span class="k">.</span>names <span class="k">=</span> <span class="k">[</span><span class="s">"getter"</span><span class="k">];</span></td></tr><tr><td class="line">545</td><td class="hits"></td><td class="source">                    <span class="k">}</span></td></tr><tr class="hit"> <td class="line">546</td><td class="hits">4</td><td class="source">                    <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>id <span class="k">&amp;&amp;</span> id<span class="k">.</span>value <span class="k">===</span> <span class="s">"inherit"</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">547</td><td class="hits">2</td><td class="source">                        ret<span class="k">.</span>names <span class="k">=</span> <span class="k">[</span><span class="s">"inherit"</span><span class="k">];</span></td></tr><tr class="hit"> <td class="line">548</td><td class="hits">2</td><td class="source">                        identifiers<span class="k">(</span>ret<span class="k">.</span>names<span class="k">);</span></td></tr><tr><td class="line">549</td><td class="hits"></td><td class="source">                    <span class="k">}</span></td></tr><tr class="hit"> <td class="line">550</td><td class="hits">2</td><td class="source">                    <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>id<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">551</td><td class="hits">2</td><td class="source">                        ret<span class="k">.</span>names <span class="k">=</span> <span class="k">[</span>id<span class="k">.</span>value<span class="k">];</span></td></tr><tr class="hit"> <td class="line">552</td><td class="hits">2</td><td class="source">                        identifiers<span class="k">(</span>ret<span class="k">.</span>names<span class="k">);</span></td></tr><tr><td class="line">553</td><td class="hits"></td><td class="source">                    <span class="k">}</span></td></tr><tr><td class="line">554</td><td class="hits"></td><td class="source">                    <span class="k">else</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">555</td><td class="hits">0</td><td class="source">                        ret<span class="k">.</span>names <span class="k">=</span> <span class="k">[];</span></td></tr><tr><td class="line">556</td><td class="hits"></td><td class="source">                    <span class="k">}</span></td></tr><tr class="hit"> <td class="line">557</td><td class="hits">5</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">558</td><td class="hits">5</td><td class="source">                    consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"}"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated serializer pattern map"</span><span class="k">);</span></td></tr><tr><td class="line">559</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">560</td><td class="hits">3</td><td class="source">                <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"["</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">561</td><td class="hits">2</td><td class="source">                    ret<span class="k">.</span>patternList <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">562</td><td class="hits">2</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">563</td><td class="hits">2</td><td class="source">                    <span class="k">var</span> id <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">);</span></td></tr><tr class="hit"> <td class="line">564</td><td class="hits">2</td><td class="source">                    <span class="k">if</span> <span class="k">(</span>id <span class="k">&amp;&amp;</span> id<span class="k">.</span>value <span class="k">===</span> <span class="s">"getter"</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">565</td><td class="hits">1</td><td class="source">                        ret<span class="k">.</span>names <span class="k">=</span> <span class="k">[</span><span class="s">"getter"</span><span class="k">];</span></td></tr><tr><td class="line">566</td><td class="hits"></td><td class="source">                    <span class="k">}</span></td></tr><tr class="hit"> <td class="line">567</td><td class="hits">1</td><td class="source">                    <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>id<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">568</td><td class="hits">1</td><td class="source">                        ret<span class="k">.</span>names <span class="k">=</span> <span class="k">[</span>id<span class="k">.</span>value<span class="k">];</span></td></tr><tr class="hit"> <td class="line">569</td><td class="hits">1</td><td class="source">                        identifiers<span class="k">(</span>ret<span class="k">.</span>names<span class="k">);</span></td></tr><tr><td class="line">570</td><td class="hits"></td><td class="source">                    <span class="k">}</span></td></tr><tr><td class="line">571</td><td class="hits"></td><td class="source">                    <span class="k">else</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">572</td><td class="hits">0</td><td class="source">                        ret<span class="k">.</span>names <span class="k">=</span> <span class="k">[];</span></td></tr><tr><td class="line">573</td><td class="hits"></td><td class="source">                    <span class="k">}</span></td></tr><tr class="hit"> <td class="line">574</td><td class="hits">2</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">575</td><td class="hits">2</td><td class="source">                    consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"]"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated serializer pattern list"</span><span class="k">);</span></td></tr><tr><td class="line">576</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">577</td><td class="hits"></td><td class="source">                <span class="k">else</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">578</td><td class="hits">1</td><td class="source">                    <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Invalid serializer"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">579</td><td class="hits">1</td><td class="source">                    ret<span class="k">.</span>name <span class="k">=</span> name<span class="k">.</span>value<span class="k">;</span></td></tr><tr><td class="line">580</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">581</td><td class="hits">8</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">582</td><td class="hits">8</td><td class="source">                consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated serializer"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">583</td><td class="hits">8</td><td class="source">                <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">584</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">585</td><td class="hits">2</td><td class="source">            <span class="k">else</span> <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr><td class="line">586</td><td class="hits"></td><td class="source">                <span class="c">// noop, just parsing</span></td></tr><tr><td class="line">587</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">588</td><td class="hits"></td><td class="source">            <span class="k">else</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">589</td><td class="hits">1</td><td class="source">                ret<span class="k">.</span>idlType <span class="k">=</span> return_type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">590</td><td class="hits">1</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">591</td><td class="hits">1</td><td class="source">                ret<span class="k">.</span>operation <span class="k">=</span> operation_rest<span class="k">();</span></td></tr><tr><td class="line">592</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">593</td><td class="hits">2</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">594</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">595</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">596</td><td class="hits">47</td><td class="source">        <span class="k">var</span> interface_ <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>isPartial<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">597</td><td class="hits">144</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">598</td><td class="hits">210</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"interface"</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">599</td><td class="hits">78</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">600</td><td class="hits">78</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name for interface"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">601</td><td class="hits">78</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">602</td><td class="hits"></td><td class="source">                type<span class="k">:</span>   <span class="s">"interface"</span></td></tr><tr><td class="line">603</td><td class="hits"></td><td class="source">            <span class="k">,</span>   name<span class="k">:</span>   name<span class="k">.</span>value</td></tr><tr><td class="line">604</td><td class="hits"></td><td class="source">            <span class="k">,</span>   partial<span class="k">:</span>    <span class="k">false</span></td></tr><tr><td class="line">605</td><td class="hits"></td><td class="source">            <span class="k">,</span>   members<span class="k">:</span>    <span class="k">[]</span></td></tr><tr><td class="line">606</td><td class="hits"></td><td class="source">            <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">607</td><td class="hits">155</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>isPartial<span class="k">)</span> ret<span class="k">.</span>inheritance <span class="k">=</span> inheritance<span class="k">()</span> <span class="k">||</span> <span class="k">null</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">608</td><td class="hits">78</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">609</td><td class="hits">78</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"{"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Bodyless interface"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">610</td><td class="hits">78</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">611</td><td class="hits">251</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">612</td><td class="hits">251</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"}"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">613</td><td class="hits">78</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">614</td><td class="hits">78</td><td class="source">                    consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Missing semicolon after interface"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">615</td><td class="hits">78</td><td class="source">                    <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">616</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">617</td><td class="hits">173</td><td class="source">                <span class="k">var</span> ea <span class="k">=</span> extended_attrs<span class="k">();</span></td></tr><tr class="hit"> <td class="line">618</td><td class="hits">173</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">619</td><td class="hits">173</td><td class="source">                <span class="k">var</span> cnt <span class="k">=</span> const_<span class="k">();</span></td></tr><tr class="hit"> <td class="line">620</td><td class="hits">173</td><td class="source">                <span class="k">if</span> <span class="k">(</span>cnt<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">621</td><td class="hits">9</td><td class="source">                    cnt<span class="k">.</span>extAttrs <span class="k">=</span> ea<span class="k">;</span></td></tr><tr class="hit"> <td class="line">622</td><td class="hits">9</td><td class="source">                    ret<span class="k">.</span>members<span class="k">.</span>push<span class="k">(</span>cnt<span class="k">);</span></td></tr><tr class="hit"> <td class="line">623</td><td class="hits">9</td><td class="source">                    <span class="k">continue</span><span class="k">;</span></td></tr><tr><td class="line">624</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">625</td><td class="hits">164</td><td class="source">                <span class="k">var</span> mem <span class="k">=</span> serialiser<span class="k">()</span> <span class="k">||</span> attribute<span class="k">()</span> <span class="k">||</span> operation<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unknown member"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">626</td><td class="hits">164</td><td class="source">                mem<span class="k">.</span>extAttrs <span class="k">=</span> ea<span class="k">;</span></td></tr><tr class="hit"> <td class="line">627</td><td class="hits">164</td><td class="source">                ret<span class="k">.</span>members<span class="k">.</span>push<span class="k">(</span>mem<span class="k">);</span></td></tr><tr><td class="line">628</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">629</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">630</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">631</td><td class="hits">47</td><td class="source">        <span class="k">var</span> partial <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">632</td><td class="hits">66</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">633</td><td class="hits">130</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"partial"</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">634</td><td class="hits">2</td><td class="source">            <span class="k">var</span> thing <span class="k">=</span> dictionary<span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">||</span> interface_<span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Partial doesn't apply to anything"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">635</td><td class="hits">2</td><td class="source">            thing<span class="k">.</span>partial <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">636</td><td class="hits">2</td><td class="source">            <span class="k">return</span> thing<span class="k">;</span></td></tr><tr><td class="line">637</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">638</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">639</td><td class="hits">47</td><td class="source">        <span class="k">var</span> dictionary <span class="k">=</span> <span class="k">function</span> <span class="k">(</span>isPartial<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">640</td><td class="hits">66</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">641</td><td class="hits">128</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"dictionary"</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">642</td><td class="hits">4</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">643</td><td class="hits">4</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name for dictionary"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">644</td><td class="hits">4</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">645</td><td class="hits"></td><td class="source">                type<span class="k">:</span>   <span class="s">"dictionary"</span></td></tr><tr><td class="line">646</td><td class="hits"></td><td class="source">            <span class="k">,</span>   name<span class="k">:</span>   name<span class="k">.</span>value</td></tr><tr><td class="line">647</td><td class="hits"></td><td class="source">            <span class="k">,</span>   partial<span class="k">:</span>    <span class="k">false</span></td></tr><tr><td class="line">648</td><td class="hits"></td><td class="source">            <span class="k">,</span>   members<span class="k">:</span>    <span class="k">[]</span></td></tr><tr><td class="line">649</td><td class="hits"></td><td class="source">            <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">650</td><td class="hits">7</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>isPartial<span class="k">)</span> ret<span class="k">.</span>inheritance <span class="k">=</span> inheritance<span class="k">()</span> <span class="k">||</span> <span class="k">null</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">651</td><td class="hits">4</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">652</td><td class="hits">4</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"{"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Bodyless dictionary"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">653</td><td class="hits">4</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">654</td><td class="hits">13</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">655</td><td class="hits">13</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"}"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">656</td><td class="hits">4</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">657</td><td class="hits">4</td><td class="source">                    consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Missing semicolon after dictionary"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">658</td><td class="hits">4</td><td class="source">                    <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">659</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">660</td><td class="hits">9</td><td class="source">                <span class="k">var</span> ea <span class="k">=</span> extended_attrs<span class="k">();</span></td></tr><tr class="hit"> <td class="line">661</td><td class="hits">9</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">662</td><td class="hits">9</td><td class="source">                <span class="k">var</span> typ <span class="k">=</span> type<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No type for dictionary member"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">663</td><td class="hits">9</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">664</td><td class="hits">9</td><td class="source">                <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name for dictionary member"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">665</td><td class="hits">9</td><td class="source">                ret<span class="k">.</span>members<span class="k">.</span>push<span class="k">(</span><span class="k">{</span></td></tr><tr><td class="line">666</td><td class="hits"></td><td class="source">                    type<span class="k">:</span>       <span class="s">"field"</span></td></tr><tr><td class="line">667</td><td class="hits"></td><td class="source">                <span class="k">,</span>   name<span class="k">:</span>       name<span class="k">.</span>value</td></tr><tr><td class="line">668</td><td class="hits"></td><td class="source">                <span class="k">,</span>   idlType<span class="k">:</span>    typ</td></tr><tr><td class="line">669</td><td class="hits"></td><td class="source">                <span class="k">,</span>   extAttrs<span class="k">:</span>   ea</td></tr><tr><td class="line">670</td><td class="hits"></td><td class="source">                <span class="k">,</span>   <span class="s">"default"</span><span class="k">:</span>  default_<span class="k">()</span></td></tr><tr><td class="line">671</td><td class="hits"></td><td class="source">                <span class="k">}</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">672</td><td class="hits">9</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">673</td><td class="hits">9</td><td class="source">                consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated dictionary member"</span><span class="k">);</span></td></tr><tr><td class="line">674</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">675</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">676</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">677</td><td class="hits">47</td><td class="source">        <span class="k">var</span> exception <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">678</td><td class="hits">61</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">679</td><td class="hits">113</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"exception"</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">680</td><td class="hits">9</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">681</td><td class="hits">9</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name for exception"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">682</td><td class="hits">9</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">683</td><td class="hits"></td><td class="source">                type<span class="k">:</span>   <span class="s">"exception"</span></td></tr><tr><td class="line">684</td><td class="hits"></td><td class="source">            <span class="k">,</span>   name<span class="k">:</span>   name<span class="k">.</span>value</td></tr><tr><td class="line">685</td><td class="hits"></td><td class="source">            <span class="k">,</span>   members<span class="k">:</span>    <span class="k">[]</span></td></tr><tr><td class="line">686</td><td class="hits"></td><td class="source">            <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">687</td><td class="hits">9</td><td class="source">            ret<span class="k">.</span>inheritance <span class="k">=</span> inheritance<span class="k">()</span> <span class="k">||</span> <span class="k">null</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">688</td><td class="hits">9</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">689</td><td class="hits">9</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"{"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Bodyless exception"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">690</td><td class="hits">9</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">691</td><td class="hits">16</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">692</td><td class="hits">16</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"}"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">693</td><td class="hits">9</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">694</td><td class="hits">9</td><td class="source">                    consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Missing semicolon after exception"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">695</td><td class="hits">9</td><td class="source">                    <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">696</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">697</td><td class="hits">7</td><td class="source">                <span class="k">var</span> ea <span class="k">=</span> extended_attrs<span class="k">();</span></td></tr><tr class="hit"> <td class="line">698</td><td class="hits">7</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">699</td><td class="hits">7</td><td class="source">                <span class="k">var</span> cnt <span class="k">=</span> const_<span class="k">();</span></td></tr><tr class="hit"> <td class="line">700</td><td class="hits">7</td><td class="source">                <span class="k">if</span> <span class="k">(</span>cnt<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">701</td><td class="hits">3</td><td class="source">                    cnt<span class="k">.</span>extAttrs <span class="k">=</span> ea<span class="k">;</span></td></tr><tr class="hit"> <td class="line">702</td><td class="hits">3</td><td class="source">                    ret<span class="k">.</span>members<span class="k">.</span>push<span class="k">(</span>cnt<span class="k">);</span></td></tr><tr><td class="line">703</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">704</td><td class="hits"></td><td class="source">                <span class="k">else</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">705</td><td class="hits">4</td><td class="source">                    <span class="k">var</span> typ <span class="k">=</span> type<span class="k">();</span></td></tr><tr class="hit"> <td class="line">706</td><td class="hits">4</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">707</td><td class="hits">4</td><td class="source">                    <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">);</span></td></tr><tr class="hit"> <td class="line">708</td><td class="hits">4</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">709</td><td class="hits">4</td><td class="source">                    <span class="k">if</span> <span class="k">(!</span>typ <span class="k">||</span> <span class="k">!</span>name <span class="k">||</span> <span class="k">!</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">))</span> error<span class="k">(</span><span class="s">"Unknown member in exception body"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">710</td><td class="hits">4</td><td class="source">                    ret<span class="k">.</span>members<span class="k">.</span>push<span class="k">(</span><span class="k">{</span></td></tr><tr><td class="line">711</td><td class="hits"></td><td class="source">                        type<span class="k">:</span>       <span class="s">"field"</span></td></tr><tr><td class="line">712</td><td class="hits"></td><td class="source">                    <span class="k">,</span>   name<span class="k">:</span>       name<span class="k">.</span>value</td></tr><tr><td class="line">713</td><td class="hits"></td><td class="source">                    <span class="k">,</span>   idlType<span class="k">:</span>    typ</td></tr><tr><td class="line">714</td><td class="hits"></td><td class="source">                    <span class="k">,</span>   extAttrs<span class="k">:</span>   ea</td></tr><tr><td class="line">715</td><td class="hits"></td><td class="source">                    <span class="k">}</span><span class="k">);</span></td></tr><tr><td class="line">716</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">717</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">718</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">719</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">720</td><td class="hits">47</td><td class="source">        <span class="k">var</span> enum_ <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">721</td><td class="hits">52</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">722</td><td class="hits">103</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"enum"</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">723</td><td class="hits">1</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">724</td><td class="hits">1</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name for enum"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">725</td><td class="hits">1</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">726</td><td class="hits"></td><td class="source">                type<span class="k">:</span>   <span class="s">"enum"</span></td></tr><tr><td class="line">727</td><td class="hits"></td><td class="source">            <span class="k">,</span>   name<span class="k">:</span>   name<span class="k">.</span>value</td></tr><tr><td class="line">728</td><td class="hits"></td><td class="source">            <span class="k">,</span>   values<span class="k">:</span> <span class="k">[]</span></td></tr><tr><td class="line">729</td><td class="hits"></td><td class="source">            <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">730</td><td class="hits">1</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">731</td><td class="hits">1</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"{"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No curly for enum"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">732</td><td class="hits">1</td><td class="source">            <span class="k">var</span> saw_comma <span class="k">=</span> <span class="k">false</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">733</td><td class="hits">1</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">734</td><td class="hits">4</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">735</td><td class="hits">4</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">"}"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">736</td><td class="hits">1</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">737</td><td class="hits">1</td><td class="source">                    <span class="k">if</span> <span class="k">(</span>saw_comma<span class="k">)</span> error<span class="k">(</span><span class="s">"Trailing comma in enum"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">738</td><td class="hits">1</td><td class="source">                    consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No semicolon after enum"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">739</td><td class="hits">1</td><td class="source">                    <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">740</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">741</td><td class="hits">3</td><td class="source">                <span class="k">var</span> val <span class="k">=</span> consume<span class="k">(</span>STR<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unexpected value in enum"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">742</td><td class="hits">3</td><td class="source">                ret<span class="k">.</span>values<span class="k">.</span>push<span class="k">(</span>val<span class="k">.</span>value<span class="k">.</span>replace<span class="k">(</span><span class="s">/"/g</span><span class="k">,</span> <span class="s">""</span><span class="k">));</span></td></tr><tr class="hit"> <td class="line">743</td><td class="hits">3</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">744</td><td class="hits">3</td><td class="source">                <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">","</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">745</td><td class="hits">2</td><td class="source">                    all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">746</td><td class="hits">2</td><td class="source">                    saw_comma <span class="k">=</span> <span class="k">true</span><span class="k">;</span></td></tr><tr><td class="line">747</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">748</td><td class="hits"></td><td class="source">                <span class="k">else</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">749</td><td class="hits">1</td><td class="source">                    saw_comma <span class="k">=</span> <span class="k">false</span><span class="k">;</span></td></tr><tr><td class="line">750</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr><td class="line">751</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">752</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">753</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">754</td><td class="hits">47</td><td class="source">        <span class="k">var</span> typedef <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">755</td><td class="hits">51</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">756</td><td class="hits">99</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"typedef"</span><span class="k">))</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">757</td><td class="hits">3</td><td class="source">            <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">758</td><td class="hits"></td><td class="source">                type<span class="k">:</span>   <span class="s">"typedef"</span></td></tr><tr><td class="line">759</td><td class="hits"></td><td class="source">            <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">760</td><td class="hits">3</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">761</td><td class="hits">3</td><td class="source">            ret<span class="k">.</span>extAttrs <span class="k">=</span> extended_attrs<span class="k">();</span></td></tr><tr class="hit"> <td class="line">762</td><td class="hits">3</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">763</td><td class="hits">3</td><td class="source">            ret<span class="k">.</span>idlType <span class="k">=</span> type<span class="k">()</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No type in typedef"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">764</td><td class="hits">3</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">765</td><td class="hits">3</td><td class="source">            <span class="k">var</span> name <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No name in typedef"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">766</td><td class="hits">3</td><td class="source">            ret<span class="k">.</span>name <span class="k">=</span> name<span class="k">.</span>value<span class="k">;</span></td></tr><tr class="hit"> <td class="line">767</td><td class="hits">3</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">768</td><td class="hits">3</td><td class="source">            consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Unterminated typedef"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">769</td><td class="hits">3</td><td class="source">            <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">770</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">771</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">772</td><td class="hits">47</td><td class="source">        <span class="k">var</span> implements_ <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">773</td><td class="hits">48</td><td class="source">            all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">774</td><td class="hits">48</td><td class="source">            <span class="k">var</span> target <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">);</span></td></tr><tr class="hit"> <td class="line">775</td><td class="hits">95</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>target<span class="k">)</span> <span class="k">return</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">776</td><td class="hits">1</td><td class="source">            <span class="k">var</span> w <span class="k">=</span> all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">777</td><td class="hits">1</td><td class="source">            <span class="k">if</span> <span class="k">(</span>consume<span class="k">(</span>ID<span class="k">,</span> <span class="s">"implements"</span><span class="k">))</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">778</td><td class="hits">1</td><td class="source">                <span class="k">var</span> ret <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">779</td><td class="hits"></td><td class="source">                    type<span class="k">:</span>   <span class="s">"implements"</span></td></tr><tr><td class="line">780</td><td class="hits"></td><td class="source">                <span class="k">,</span>   target<span class="k">:</span> target<span class="k">.</span>value</td></tr><tr><td class="line">781</td><td class="hits"></td><td class="source">                <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">782</td><td class="hits">1</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">783</td><td class="hits">1</td><td class="source">                <span class="k">var</span> imp <span class="k">=</span> consume<span class="k">(</span>ID<span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"Incomplete implements statement"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">784</td><td class="hits">1</td><td class="source">                ret<span class="k">[</span><span class="s">"implements"</span><span class="k">]</span> <span class="k">=</span> imp<span class="k">.</span>value<span class="k">;</span></td></tr><tr class="hit"> <td class="line">785</td><td class="hits">1</td><td class="source">                all_ws<span class="k">();</span></td></tr><tr class="hit"> <td class="line">786</td><td class="hits">1</td><td class="source">                consume<span class="k">(</span>OTHER<span class="k">,</span> <span class="s">";"</span><span class="k">)</span> <span class="k">||</span> error<span class="k">(</span><span class="s">"No terminating ; for implements statement"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">787</td><td class="hits">1</td><td class="source">                <span class="k">return</span> ret<span class="k">;</span></td></tr><tr><td class="line">788</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">789</td><td class="hits"></td><td class="source">            <span class="k">else</span> <span class="k">{</span></td></tr><tr><td class="line">790</td><td class="hits"></td><td class="source">                <span class="c">// rollback</span></td></tr><tr class="miss"> <td class="line">791</td><td class="hits">0</td><td class="source">                tokens<span class="k">.</span>unshift<span class="k">(</span>w<span class="k">);</span></td></tr><tr class="miss"> <td class="line">792</td><td class="hits">0</td><td class="source">                tokens<span class="k">.</span>unshift<span class="k">(</span>target<span class="k">);</span></td></tr><tr><td class="line">793</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr><td class="line">794</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">795</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">796</td><td class="hits">47</td><td class="source">        <span class="k">var</span> definition <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">797</td><td class="hits">144</td><td class="source">            <span class="k">return</span>  callback<span class="k">()</span>      <span class="k">||</span></td></tr><tr><td class="line">798</td><td class="hits"></td><td class="source">                    interface_<span class="k">()</span>    <span class="k">||</span></td></tr><tr><td class="line">799</td><td class="hits"></td><td class="source">                    partial<span class="k">()</span>       <span class="k">||</span></td></tr><tr><td class="line">800</td><td class="hits"></td><td class="source">                    dictionary<span class="k">()</span>    <span class="k">||</span></td></tr><tr><td class="line">801</td><td class="hits"></td><td class="source">                    exception<span class="k">()</span>     <span class="k">||</span></td></tr><tr><td class="line">802</td><td class="hits"></td><td class="source">                    enum_<span class="k">()</span>         <span class="k">||</span></td></tr><tr><td class="line">803</td><td class="hits"></td><td class="source">                    typedef<span class="k">()</span>       <span class="k">||</span></td></tr><tr><td class="line">804</td><td class="hits"></td><td class="source">                    implements_<span class="k">()</span></td></tr><tr><td class="line">805</td><td class="hits"></td><td class="source">                    <span class="k">;</span></td></tr><tr><td class="line">806</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">807</td><td class="hits"></td><td class="source">        </td></tr><tr class="hit"> <td class="line">808</td><td class="hits">47</td><td class="source">        <span class="k">var</span> definitions <span class="k">=</span> <span class="k">function</span> <span class="k">()</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">809</td><td class="hits">47</td><td class="source">            <span class="k">if</span> <span class="k">(!</span>tokens<span class="k">.</span>length<span class="k">)</span> <span class="k">return</span> <span class="k">[];</span></td></tr><tr class="hit"> <td class="line">810</td><td class="hits">47</td><td class="source">            <span class="k">var</span> defs <span class="k">=</span> <span class="k">[];</span></td></tr><tr class="hit"> <td class="line">811</td><td class="hits">47</td><td class="source">            <span class="k">while</span> <span class="k">(</span><span class="k">true</span><span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">812</td><td class="hits">144</td><td class="source">                <span class="k">var</span> ea <span class="k">=</span> extended_attrs<span class="k">()</span></td></tr><tr><td class="line">813</td><td class="hits"></td><td class="source">                <span class="k">,</span>   def <span class="k">=</span> definition<span class="k">();</span></td></tr><tr class="hit"> <td class="line">814</td><td class="hits">144</td><td class="source">                <span class="k">if</span> <span class="k">(!</span>def<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">815</td><td class="hits">47</td><td class="source">                    <span class="k">if</span> <span class="k">(</span>ea<span class="k">.</span>length<span class="k">)</span> error<span class="k">(</span><span class="s">"Stray extended attributes"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">816</td><td class="hits">47</td><td class="source">                    <span class="k">break</span><span class="k">;</span></td></tr><tr><td class="line">817</td><td class="hits"></td><td class="source">                <span class="k">}</span></td></tr><tr class="hit"> <td class="line">818</td><td class="hits">97</td><td class="source">                def<span class="k">.</span>extAttrs <span class="k">=</span> ea<span class="k">;</span></td></tr><tr class="hit"> <td class="line">819</td><td class="hits">97</td><td class="source">                defs<span class="k">.</span>push<span class="k">(</span>def<span class="k">);</span></td></tr><tr><td class="line">820</td><td class="hits"></td><td class="source">            <span class="k">}</span></td></tr><tr class="hit"> <td class="line">821</td><td class="hits">47</td><td class="source">            <span class="k">return</span> defs<span class="k">;</span></td></tr><tr><td class="line">822</td><td class="hits"></td><td class="source">        <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">823</td><td class="hits">47</td><td class="source">        <span class="k">var</span> res <span class="k">=</span> definitions<span class="k">();</span></td></tr><tr class="hit"> <td class="line">824</td><td class="hits">47</td><td class="source">        <span class="k">if</span> <span class="k">(</span>tokens<span class="k">.</span>length<span class="k">)</span> error<span class="k">(</span><span class="s">"Unrecognised tokens"</span><span class="k">);</span></td></tr><tr class="hit"> <td class="line">825</td><td class="hits">47</td><td class="source">        <span class="k">return</span> res<span class="k">;</span></td></tr><tr><td class="line">826</td><td class="hits"></td><td class="source">    <span class="k">}</span><span class="k">;</span></td></tr><tr><td class="line">827</td><td class="hits"></td><td class="source"> </td></tr><tr class="hit"> <td class="line">828</td><td class="hits">1</td><td class="source">    <span class="k">var</span> obj <span class="k">=</span> <span class="k">{</span></td></tr><tr><td class="line">829</td><td class="hits"></td><td class="source">        parse<span class="k">:</span>  <span class="k">function</span> <span class="k">(</span>str<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">830</td><td class="hits">47</td><td class="source">            <span class="k">var</span> tokens <span class="k">=</span> tokenise<span class="k">(</span>str<span class="k">);</span></td></tr><tr><td class="line">831</td><td class="hits"></td><td class="source">            <span class="c">// console.log(tokens);</span></td></tr><tr class="hit"> <td class="line">832</td><td class="hits">47</td><td class="source">            <span class="k">return</span> parse<span class="k">(</span>tokens<span class="k">);</span></td></tr><tr><td class="line">833</td><td class="hits"></td><td class="source">        <span class="k">}</span></td></tr><tr><td class="line">834</td><td class="hits"></td><td class="source">    <span class="k">}</span><span class="k">;</span></td></tr><tr class="hit"> <td class="line">835</td><td class="hits">1</td><td class="source">    <span class="k">if</span> <span class="k">(</span><span class="k">typeof</span> module <span class="k">!==</span> <span class="s">"undefined"</span> <span class="k">&amp;&amp;</span> module<span class="k">.</span>exports<span class="k">)</span> <span class="k">{</span></td></tr><tr class="hit"> <td class="line">836</td><td class="hits">1</td><td class="source">        module<span class="k">.</span>exports <span class="k">=</span> obj<span class="k">;</span></td></tr><tr><td class="line">837</td><td class="hits"></td><td class="source">    <span class="k">}</span></td></tr><tr><td class="line">838</td><td class="hits"></td><td class="source">    <span class="k">else</span> <span class="k">{</span></td></tr><tr class="miss"> <td class="line">839</td><td class="hits">0</td><td class="source">        window<span class="k">.</span>WebIDL2 <span class="k">=</span> obj<span class="k">;</span></td></tr><tr><td class="line">840</td><td class="hits"></td><td class="source">    <span class="k">}</span></td></tr><tr><td class="line">841</td><td class="hits"></td><td class="source"><span class="k">}</span><span class="k">());</span></td></tr></tbody></table></div></div></div></body></html>
diff --git a/test/fixtures/wpt/resources/webidl2/index.js b/test/fixtures/wpt/resources/webidl2/index.js
deleted file mode 100644
index 09f9eb46aa78f4..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require("./lib/webidl2.js");
diff --git a/test/fixtures/wpt/resources/webidl2/lib/writer.js b/test/fixtures/wpt/resources/webidl2/lib/writer.js
deleted file mode 100644
index b3097a6f8a74e4..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/lib/writer.js
+++ /dev/null
@@ -1,221 +0,0 @@
-"use strict";
-
-(() => {
-  function write(ast, opt = {}) {
-    const noop = str => str;
-    const optNames = "type".split(" ");
-    const context = [];
-    for (const o of optNames) {
-      if (!opt[o]) opt[o] = noop;
-    }
-
-    function literal(it) {
-      return it.value;
-    };
-    function type(it) {
-      if (typeof it === "string") return opt.type(it); // XXX should maintain some context
-      let ret = extended_attributes(it.extAttrs);
-      if (it.union) ret += `(${it.idlType.map(type).join(" or ")})`;
-      else {
-        if (it.generic) ret += `${it.generic}<`;
-        if (Array.isArray(it.idlType)) ret += it.idlType.map(type).join(", ");
-        else ret += type(it.idlType);
-        if (it.generic) ret += ">";
-      }
-      if (it.nullable) ret += "?";
-
-      return ret;
-    };
-    function const_value(it) {
-      const tp = it.type;
-      if (tp === "boolean") return it.value ? "true" : "false";
-      else if (tp === "null") return "null";
-      else if (tp === "Infinity") return (it.negative ? "-" : "") + "Infinity";
-      else if (tp === "NaN") return "NaN";
-      else if (tp === "number") return it.value;
-      else if (tp === "sequence") return "[]";
-      else return `"${it.value}"`;
-    };
-    function argument(arg) {
-      let ret = extended_attributes(arg.extAttrs);
-      if (arg.optional) ret += "optional ";
-      ret += type(arg.idlType);
-      if (arg.variadic) ret += "...";
-      ret += ` ${arg.escapedName}`;
-      if (arg.default) ret += ` = ${const_value(arg.default)}`;
-      return ret;
-    };
-    function make_ext_at(it) {
-      context.unshift(it);
-      let ret = it.name;
-      if (it.rhs) {
-        if (it.rhs.type === "identifier-list") ret += `=(${it.rhs.value.join(",")})`;
-        else ret += `=${it.rhs.value}`;
-      }
-      if (it.arguments) ret += `(${it.arguments.length ? it.arguments.map(argument).join(",") : ""})`;
-      context.shift(); // XXX need to add more contexts, but not more than needed for ReSpec
-      return ret;
-    };
-    function extended_attributes(eats) {
-      if (!eats || !eats.length) return "";
-      return `[${eats.map(make_ext_at).join(", ")}]`;
-    };
-
-    const modifiers = "getter setter deleter stringifier static".split(" ");
-    function operation(it) {
-      let ret = extended_attributes(it.extAttrs);
-      if (it.stringifier && !it.idlType) return "stringifier;";
-      for (const mod of modifiers) {
-        if (it[mod]) ret += mod + " ";
-      }
-      ret += type(it.idlType) + " ";
-      if (it.name) ret += it.escapedName;
-      ret += `(${it.arguments.map(argument).join(",")});`;
-      return ret;
-    };
-
-    function attribute(it) {
-      let ret = extended_attributes(it.extAttrs);
-      if (it.static) ret += "static ";
-      if (it.stringifier) ret += "stringifier ";
-      if (it.inherit) ret += "inherit ";
-      if (it.readonly) ret += "readonly ";
-      ret += `attribute ${type(it.idlType)} ${it.escapedName};`;
-      return ret;
-    };
-
-    function interface_(it) {
-      let ret = extended_attributes(it.extAttrs);
-      if (it.partial) ret += "partial ";
-      ret += `interface ${it.name} `;
-      if (it.inheritance) ret += `: ${it.inheritance} `;
-      ret += `{${iterate(it.members)}};`;
-      return ret;
-    };
-
-    function interface_mixin(it) {
-      let ret = extended_attributes(it.extAttrs);
-      if (it.partial) ret += "partial ";
-      ret += `interface mixin ${it.name} `;
-      ret += `{${iterate(it.members)}};`;
-      return ret;
-    }
-
-    function namespace(it) {
-      let ret = extended_attributes(it.extAttrs);
-      if (it.partial) ret += "partial ";
-      ret += `namespace ${it.name} `;
-      ret += `{${iterate(it.members)}};`;
-      return ret;
-    }
-
-    function dictionary(it) {
-      let ret = extended_attributes(it.extAttrs);
-      if (it.partial) ret += "partial ";
-      ret += `dictionary ${it.name} `;
-      if (it.inheritance) ret += `: ${it.inheritance} `;
-      ret += `{${iterate(it.members)}};`;
-      return ret;
-    };
-    function field(it) {
-      let ret = extended_attributes(it.extAttrs);
-      if (it.required) ret += "required ";
-      ret += `${type(it.idlType)} ${it.escapedName}`;
-      if (it.default) ret += ` = ${const_value(it.default)}`;
-      ret += ";";
-      return ret;
-    };
-    function const_(it) {
-      const ret = extended_attributes(it.extAttrs);
-      return `${ret}const ${type(it.idlType)}${it.nullable ? "?" : ""} ${it.name} = ${const_value(it.value)};`;
-    };
-    function typedef(it) {
-      let ret = extended_attributes(it.extAttrs);
-      ret += `typedef ${extended_attributes(it.typeExtAttrs)}`;
-      return `${ret}${type(it.idlType)} ${it.name};`;
-    };
-    function implements_(it) {
-      const ret = extended_attributes(it.extAttrs);
-      return `${ret}${it.target} implements ${it.implements};`;
-    };
-    function includes(it) {
-      const ret = extended_attributes(it.extAttrs);
-      return `${ret}${it.target} includes ${it.includes};`;
-    };
-    function callback(it) {
-      const ret = extended_attributes(it.extAttrs);
-      return `${ret}callback ${it.name} = ${type(it.idlType)}(${it.arguments.map(argument).join(",")});`;
-    };
-    function enum_(it) {
-      let ret = extended_attributes(it.extAttrs);
-      ret += `enum ${it.name} {`;
-      for (const v of it.values) {
-        ret += `"${v.value}",`;
-      }
-      return ret + "};";
-    };
-    function iterable(it) {
-      return `iterable<${Array.isArray(it.idlType) ? it.idlType.map(type).join(", ") : type(it.idlType)}>;`;
-    };
-    function legacyiterable(it) {
-      return `legacyiterable<${Array.isArray(it.idlType) ? it.idlType.map(type).join(", ") : type(it.idlType)}>;`;
-    };
-    function maplike(it) {
-      return `${it.readonly ? "readonly " : ""}maplike<${it.idlType.map(type).join(", ")}>;`;
-    };
-    function setlike(it) {
-      return `${it.readonly ? "readonly " : ""}setlike<${type(it.idlType[0])}>;`;
-    };
-    function callbackInterface(it) {
-      return `callback ${interface_(it)}`;
-    };
-
-    const table = {
-      interface: interface_,
-      "interface mixin": interface_mixin,
-      namespace,
-      operation,
-      attribute,
-      dictionary,
-      field,
-      const: const_,
-      typedef,
-      implements: implements_,
-      includes,
-      callback,
-      enum: enum_,
-      iterable,
-      legacyiterable,
-      maplike,
-      setlike,
-      "callback interface": callbackInterface
-    };
-    function dispatch(it) {
-      const dispatcher = table[it.type];
-      if (!dispatcher) {
-        throw new Error(`Type "${it.type}" is unsupported`)
-      }
-      return table[it.type](it);
-    };
-    function iterate(things) {
-      if (!things) return;
-      let ret = "";
-      for (const thing of things) ret += dispatch(thing);
-      return ret;
-    };
-    return iterate(ast);
-  };
-
-
-  const obj = {
-    write
-  };
-
-  if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') {
-    module.exports = obj;
-  } else if (typeof define === 'function' && define.amd) {
-    define([], () => obj);
-  } else {
-    (self || window).WebIDL2Writer = obj;
-  }
-})();
diff --git a/test/fixtures/wpt/resources/webidl2/package-lock.json b/test/fixtures/wpt/resources/webidl2/package-lock.json
deleted file mode 100644
index b0581037fe9434..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/package-lock.json
+++ /dev/null
@@ -1,700 +0,0 @@
-{
-  "name": "webidl2",
-  "version": "13.0.3",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "@babel/code-frame": {
-      "version": "7.0.0-beta.40",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0-beta.40.tgz",
-      "integrity": "sha512-eVXQSbu/RimU6OKcK2/gDJVTFcxXJI4sHbIqw2mhwMZeQ2as/8AhS9DGkEDoHMBBNJZ5B0US63lF56x+KDcxiA==",
-      "dev": true,
-      "requires": {
-        "@babel/highlight": "7.0.0-beta.40"
-      }
-    },
-    "@babel/highlight": {
-      "version": "7.0.0-beta.40",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.0.0-beta.40.tgz",
-      "integrity": "sha512-mOhhTrzieV6VO7odgzFGFapiwRK0ei8RZRhfzHhb6cpX3QM8XXuCLXWjN8qBB7JReDdUR80V3LFfFrGUYevhNg==",
-      "dev": true,
-      "requires": {
-        "chalk": "^2.0.0",
-        "esutils": "^2.0.2",
-        "js-tokens": "^3.0.0"
-      }
-    },
-    "ansi-regex": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
-      "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
-      "dev": true
-    },
-    "ansi-styles": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
-      "dev": true,
-      "requires": {
-        "color-convert": "^1.9.0"
-      }
-    },
-    "arr-diff": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
-      "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
-      "dev": true,
-      "requires": {
-        "arr-flatten": "^1.0.1"
-      }
-    },
-    "arr-flatten": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.1.0.tgz",
-      "integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==",
-      "dev": true
-    },
-    "array-unique": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.2.1.tgz",
-      "integrity": "sha1-odl8yvy8JiXMcPrc6zalDFiwGlM=",
-      "dev": true
-    },
-    "balanced-match": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-      "dev": true
-    },
-    "brace-expansion": {
-      "version": "1.1.11",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
-      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "dev": true,
-      "requires": {
-        "balanced-match": "^1.0.0",
-        "concat-map": "0.0.1"
-      }
-    },
-    "braces": {
-      "version": "1.8.5",
-      "resolved": "https://registry.npmjs.org/braces/-/braces-1.8.5.tgz",
-      "integrity": "sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=",
-      "dev": true,
-      "requires": {
-        "expand-range": "^1.8.1",
-        "preserve": "^0.2.0",
-        "repeat-element": "^1.1.2"
-      }
-    },
-    "browser-stdout": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
-      "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==",
-      "dev": true
-    },
-    "chalk": {
-      "version": "2.3.2",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.3.2.tgz",
-      "integrity": "sha512-ZM4j2/ld/YZDc3Ma8PgN7gyAk+kHMMMyzLNryCPGhWrsfAuDVeuid5bpRFTDgMH9JBK2lA4dyyAkkZYF/WcqDQ==",
-      "dev": true,
-      "requires": {
-        "ansi-styles": "^3.2.1",
-        "escape-string-regexp": "^1.0.5",
-        "supports-color": "^5.3.0"
-      }
-    },
-    "color-convert": {
-      "version": "1.9.1",
-      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.1.tgz",
-      "integrity": "sha512-mjGanIiwQJskCC18rPR6OmrZ6fm2Lc7PeGFYwCmy5J34wC6F1PzdGL6xeMfmgicfYcNLGuVFA3WzXtIDCQSZxQ==",
-      "dev": true,
-      "requires": {
-        "color-name": "^1.1.1"
-      }
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-    "color-name": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
-      "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
-      "dev": true
-    },
-    "commander": {
-      "version": "2.11.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.11.0.tgz",
-      "integrity": "sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ==",
-      "dev": true
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-    "concat-map": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-      "dev": true
-    },
-    "debug": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-      "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-      "dev": true,
-      "requires": {
-        "ms": "2.0.0"
-      }
-    },
-    "diff": {
-      "version": "3.5.0",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
-      "integrity": "sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==",
-      "dev": true
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-    "diff-match-patch": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/diff-match-patch/-/diff-match-patch-1.0.0.tgz",
-      "integrity": "sha1-HMPIOkkNZ/ldkeOfatHy4Ia2MEg=",
-      "dev": true
-    },
-    "escape-string-regexp": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
-      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
-      "dev": true
-    },
-    "esutils": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.2.tgz",
-      "integrity": "sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=",
-      "dev": true
-    },
-    "expand-brackets": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/expand-brackets/-/expand-brackets-0.1.5.tgz",
-      "integrity": "sha1-3wcoTjQqgHzXM6xa9yQR5YHRF3s=",
-      "dev": true,
-      "requires": {
-        "is-posix-bracket": "^0.1.0"
-      }
-    },
-    "expand-range": {
-      "version": "1.8.2",
-      "resolved": "https://registry.npmjs.org/expand-range/-/expand-range-1.8.2.tgz",
-      "integrity": "sha1-opnv/TNf4nIeuujiV+x5ZE/IUzc=",
-      "dev": true,
-      "requires": {
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-      "resolved": "https://registry.npmjs.org/expect/-/expect-22.4.0.tgz",
-      "integrity": "sha512-Fiy862jT3qc70hwIHwwCBNISmaqBrfWKKrtqyMJ6iwZr+6KXtcnHojZFtd63TPRvRl8EQTJ+YXYy2lK6/6u+Hw==",
-      "dev": true,
-      "requires": {
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-        "jest-diff": "^22.4.0",
-        "jest-get-type": "^22.1.0",
-        "jest-matcher-utils": "^22.4.0",
-        "jest-message-util": "^22.4.0",
-        "jest-regex-util": "^22.1.0"
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-    "extglob": {
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-      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
-      "dev": true
-    },
-    "slash": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
-      "integrity": "sha1-xB8vbDn8FtHNF61LXYlhFK5HDVU=",
-      "dev": true
-    },
-    "stack-utils": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/stack-utils/-/stack-utils-1.0.1.tgz",
-      "integrity": "sha1-1PM6tU6OOHeLDKXP07OvsS22hiA=",
-      "dev": true
-    },
-    "supports-color": {
-      "version": "5.3.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.3.0.tgz",
-      "integrity": "sha512-0aP01LLIskjKs3lq52EC0aGBAJhLq7B2Rd8HC/DR/PtNNpcLilNmHC12O+hu0usQpo7wtHNRqtrhBwtDb0+dNg==",
-      "dev": true,
-      "requires": {
-        "has-flag": "^3.0.0"
-      }
-    },
-    "wrappy": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true
-    }
-  }
-}
diff --git a/test/fixtures/wpt/resources/webidl2/package.json b/test/fixtures/wpt/resources/webidl2/package.json
deleted file mode 100644
index 92faccafa813fb..00000000000000
--- a/test/fixtures/wpt/resources/webidl2/package.json
+++ /dev/null
@@ -1,27 +0,0 @@
-{
-  "name": "webidl2",
-  "description": "A WebIDL Parser",
-  "version": "13.0.3",
-  "contributors": [
-    "Robin Berjon <robin@berjon.com> (https://berjon.com)",
-    "Marcos Caceres <marcos@marcosc.com> (https://marcosc.com)",
-    "Kagami Sascha Rosylight <saschaplas@outlook.com>",
-    "Timothy Gu <timothygu99@gmail.com>"
-  ],
-  "license": "W3C",
-  "dependencies": {},
-  "devDependencies": {
-    "expect": "22.4.0",
-    "jsondiffpatch": "0.3.5",
-    "mocha": "5.0.4"
-  },
-  "scripts": {
-    "test": "mocha",
-    "acquire": "node test/util/acquire.js"
-  },
-  "repository": "git://github.com/w3c/webidl2.js",
-  "main": "index.js",
-  "files": [
-    "lib/*"
-  ]
-}
diff --git a/test/fixtures/wpt/streams/readable-byte-streams/enqueue-with-detached-buffer.window.js b/test/fixtures/wpt/streams/readable-byte-streams/enqueue-with-detached-buffer.any.js
similarity index 88%
rename from test/fixtures/wpt/streams/readable-byte-streams/enqueue-with-detached-buffer.window.js
rename to test/fixtures/wpt/streams/readable-byte-streams/enqueue-with-detached-buffer.any.js
index 15400f69340451..d2b37f00a9d697 100644
--- a/test/fixtures/wpt/streams/readable-byte-streams/enqueue-with-detached-buffer.window.js
+++ b/test/fixtures/wpt/streams/readable-byte-streams/enqueue-with-detached-buffer.any.js
@@ -1,3 +1,5 @@
+// META: global=window,worker
+
 promise_test(async t => {
   const error = new Error('cannot proceed');
   const rs = new ReadableStream({
@@ -5,7 +7,7 @@ promise_test(async t => {
     pull: t.step_func((controller) => {
       const buffer = controller.byobRequest.view.buffer;
       // Detach the buffer.
-      postMessage(buffer, '*', [buffer]);
+      structuredClone(buffer, { transfer: [buffer] });
 
       // Try to enqueue with a new buffer.
       assert_throws_js(TypeError, () => controller.enqueue(new Uint8Array([42])));
diff --git a/test/fixtures/wpt/streams/readable-streams/garbage-collection.any.js b/test/fixtures/wpt/streams/readable-streams/garbage-collection.any.js
index f7e2d06ae5cdf3..e578176777adaf 100644
--- a/test/fixtures/wpt/streams/readable-streams/garbage-collection.any.js
+++ b/test/fixtures/wpt/streams/readable-streams/garbage-collection.any.js
@@ -1,5 +1,6 @@
 // META: global=window,worker
 // META: script=../resources/test-utils.js
+// META: script=/common/gc.js
 'use strict';
 
 promise_test(async () => {
diff --git a/test/fixtures/wpt/streams/resources/test-utils.js b/test/fixtures/wpt/streams/resources/test-utils.js
index fb34e270ff3718..5ff8fc8cec939a 100644
--- a/test/fixtures/wpt/streams/resources/test-utils.js
+++ b/test/fixtures/wpt/streams/resources/test-utils.js
@@ -47,26 +47,6 @@ self.constructorThrowsForAll = (constructor, firstArgs) => {
                                                  'constructor should throw a TypeError'));
 };
 
-self.garbageCollect = async () => {
-  if (self.TestUtils?.gc) {
-    // https://testutils.spec.whatwg.org/#the-testutils-namespace
-    await TestUtils.gc();
-  } else if (self.gc) {
-    // Use --expose_gc for V8 (and Node.js)
-    // to pass this flag at chrome launch use: --js-flags="--expose-gc"
-    // Exposed in SpiderMonkey shell as well
-    self.gc();
-  } else if (self.GCController) {
-    // Present in some WebKit development environments
-    GCController.collect();
-  } else {
-    /* eslint-disable no-console */
-    console.warn('Tests are running without the ability to do manual garbage collection. They will still work, but ' +
-      'coverage will be suboptimal.');
-    /* eslint-enable no-console */
-  }
-};
-
 self.delay = ms => new Promise(resolve => step_timeout(resolve, ms));
 
 // For tests which verify that the implementation doesn't do something it shouldn't, it's better not to use a
diff --git a/test/fixtures/wpt/streams/transferable/gc-crash.html b/test/fixtures/wpt/streams/transferable/gc-crash.html
new file mode 100644
index 00000000000000..0d331e6be08059
--- /dev/null
+++ b/test/fixtures/wpt/streams/transferable/gc-crash.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html class="test-wait">
+<script src="/common/gc.js"></script>
+<script type="module">
+  const b = new ReadableStream({
+    start(c) {
+      c.enqueue({}) // the value we will transfer
+    },
+  })
+  const transferred = structuredClone(b, { transfer: [b] })
+  // Here we request a read, triggering a message transfer
+  transferred.getReader().read()
+  // And immediately trigger GC without waiting for the read,
+  // causing the actual transfer to be done after GC
+  await garbageCollect()
+  document.documentElement.classList.remove("test-wait")
+</script>
diff --git a/test/fixtures/wpt/url/url-constructor.html b/test/fixtures/wpt/url/url-constructor.html
deleted file mode 100644
index 7ddcdc88170c20..00000000000000
--- a/test/fixtures/wpt/url/url-constructor.html
+++ /dev/null
@@ -1,44 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<div id=log></div>
-<script>
-function bURL(url, base) {
-  return new URL(url, base || "about:blank")
-}
-
-function runURLTests(urltests) {
-  for(var i = 0, l = urltests.length; i < l; i++) {
-    var expected = urltests[i]
-    if (typeof expected === "string") continue // skip comments
-
-    test(function() {
-      if (expected.failure) {
-        assert_throws_js(TypeError, function() {
-          bURL(expected.input, expected.base)
-        })
-        return
-      }
-
-      var url = bURL(expected.input, expected.base)
-      assert_equals(url.href, expected.href, "href")
-      assert_equals(url.protocol, expected.protocol, "protocol")
-      assert_equals(url.username, expected.username, "username")
-      assert_equals(url.password, expected.password, "password")
-      assert_equals(url.host, expected.host, "host")
-      assert_equals(url.hostname, expected.hostname, "hostname")
-      assert_equals(url.port, expected.port, "port")
-      assert_equals(url.pathname, expected.pathname, "pathname")
-      assert_equals(url.search, expected.search, "search")
-      if ("searchParams" in expected) {
-        assert_true("searchParams" in url)
-        assert_equals(url.searchParams.toString(), expected.searchParams, "searchParams")
-      }
-      assert_equals(url.hash, expected.hash, "hash")
-    }, "Parsing: <" + expected.input + "> against <" + expected.base + ">")
-  }
-}
-
-promise_test(() => fetch("resources/urltestdata.json").then(res => res.json()).then(runURLTests), "Loading data…");
-</script>
diff --git a/test/fixtures/wpt/url/url-origin.html b/test/fixtures/wpt/url/url-origin.html
deleted file mode 100644
index fccb643ed6c806..00000000000000
--- a/test/fixtures/wpt/url/url-origin.html
+++ /dev/null
@@ -1,24 +0,0 @@
-<!doctype html>
-<meta charset=utf-8>
-<script src=/resources/testharness.js></script>
-<script src=/resources/testharnessreport.js></script>
-<div id=log></div>
-<script>
-promise_test(() => fetch("resources/urltestdata.json").then(res => res.json()).then(runURLTests), "Loading data…");
-
-function bURL(url, base) {
-  return new URL(url, base || "about:blank")
-}
-
-function runURLTests(urltests) {
-  for(var i = 0, l = urltests.length; i < l; i++) {
-    var expected = urltests[i]
-    if (typeof expected === "string" || !("origin" in expected)) continue
-
-    test(function() {
-      var url = bURL(expected.input, expected.base)
-      assert_equals(url.origin, expected.origin, "origin")
-    }, "Origin parsing: <" + expected.input + "> against <" + expected.base + ">")
-  }
-}
-</script>
diff --git a/test/fixtures/wpt/versions.json b/test/fixtures/wpt/versions.json
index f3a49312328e6d..8dd0c82e0c4cce 100644
--- a/test/fixtures/wpt/versions.json
+++ b/test/fixtures/wpt/versions.json
@@ -1,6 +1,6 @@
 {
   "common": {
-    "commit": "03c5072affa496c5fd2a506e5c40d23e36b5e3aa",
+    "commit": "dbd648158d337580885e70a54f929daf215211a0",
     "path": "common"
   },
   "console": {
@@ -24,13 +24,9 @@
     "path": "fetch/data-urls/resources"
   },
   "FileAPI": {
-    "commit": "3b279420d40afea32506e823f9ac005448f4f3d8",
+    "commit": "1e432c4550a1595888d7c9eb26d90895e9e7e022",
     "path": "FileAPI"
   },
-  "FileAPI/file": {
-    "commit": "c01f637cca43f0e08ce8e4269121dcd89ccbdd82",
-    "path": "FileAPI/file"
-  },
   "hr-time": {
     "commit": "34cafd797e58dad280d20040eee012d49ccfa91f",
     "path": "hr-time"
@@ -64,11 +60,11 @@
     "path": "resource-timing"
   },
   "resources": {
-    "commit": "fbf1e7d24776b6da144dbca45c22d39dc0512d2d",
+    "commit": "919874f84ff3703365063e749161a34af38c3d2a",
     "path": "resources"
   },
   "streams": {
-    "commit": "9e5ef42bd34b5b19b76d0d4cb19012e52c222664",
+    "commit": "51750bc8d749bd80930506f603940a6bafda459f",
     "path": "streams"
   },
   "url": {
@@ -94,5 +90,9 @@
   "webidl/ecmascript-binding/es-exceptions": {
     "commit": "a370aad338d6ed743abb4d2c6ae84a7f1058558c",
     "path": "webidl/ecmascript-binding/es-exceptions"
+  },
+  "webmessaging/broadcastchannel": {
+    "commit": "e97fac4791931fb7455ba3fad759d362c7108b09",
+    "path": "webmessaging/broadcastchannel"
   }
 }
diff --git a/test/fixtures/wpt/webmessaging/broadcastchannel/blobs.html b/test/fixtures/wpt/webmessaging/broadcastchannel/blobs.html
index 1f0e2f1f1d6050..ab5096b63c19b0 100644
--- a/test/fixtures/wpt/webmessaging/broadcastchannel/blobs.html
+++ b/test/fixtures/wpt/webmessaging/broadcastchannel/blobs.html
@@ -2,6 +2,7 @@
 <meta charset=utf-8>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="/common/gc.js"></script>
 <script>
 async_test(t => {
     const c1 = new BroadcastChannel('blob');
@@ -27,9 +28,7 @@
     (() => {
       c1.postMessage({blob: new Blob(['foo', 'bar'])});
     })();
-    // TODO(https://github.com/web-platform-tests/wpt/issues/7899): Change to
-    // some sort of cross-browser GC trigger.
-    if (self.gc) self.gc();
+    garbageCollect();
   }, 'Blobs work on BroadcastChannel');
 
 async_test(t => {
diff --git a/test/fixtures/wpt/webmessaging/broadcastchannel/cross-partition.https.tentative.html b/test/fixtures/wpt/webmessaging/broadcastchannel/cross-partition.https.tentative.html
index 163e6c00a93a95..4e91da554686ec 100644
--- a/test/fixtures/wpt/webmessaging/broadcastchannel/cross-partition.https.tentative.html
+++ b/test/fixtures/wpt/webmessaging/broadcastchannel/cross-partition.https.tentative.html
@@ -1,5 +1,6 @@
 <!DOCTYPE html>
 <meta charset=utf-8>
+<meta name="timeout" content="long">
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/common/get-host-info.sub.js"></script>
@@ -7,66 +8,349 @@
 <script src="/common/dispatcher/dispatcher.js"></script>
 <!-- Pull in executor_path needed by newPopup / newIframe -->
 <script src="/html/cross-origin-embedder-policy/credentialless/resources/common.js"></script>
-<!-- Pull in newPopup / newIframe -->
-<script src="/html/cross-origin-embedder-policy/anonymous-iframe/resources/common.js"></script>
+<!-- Pull in importScript / newPopup / newIframe -->
+<script src="/html/anonymous-iframe/resources/common.js"></script>
 <body>
 <script>
 
-const emit_script = (channel_name, message, done_queue_name) => `
+const bc_postmessage_js = (channel_name, message, done_queue_name) => `
   const bc = new BroadcastChannel("${channel_name}");
   bc.postMessage("${message}");
   send("${done_queue_name}", "done");
 `;
 
-promise_test(async t => {
-  const origin = get_host_info().HTTPS_ORIGIN;
-  const not_same_site_origin = get_host_info().HTTPS_NOTSAMESITE_ORIGIN;
-  const response_queue_uuid = token();
+const add_iframe_js = (iframe_origin, response_queue_uuid) => `
+  const importScript = ${importScript};
+  await importScript("/html/cross-origin-embedder-policy/credentialless" +
+                   "/resources/common.js");
+  await importScript("/html/anonymous-iframe/resources/common.js");
+  await importScript("/common/utils.js");
+  send("${response_queue_uuid}", newIframe("${iframe_origin}"));
+`;
 
-  const popup_init_script = `
-    const importScript = ${importScript};
-    await importScript("/html/cross-origin-embedder-policy/credentialless" +
-                       "/resources/common.js");
-    await importScript("/html/cross-origin-embedder-policy/anonymous-iframe" +
-                       "/resources/common.js");
-    await importScript("/common/utils.js");
-    send("${response_queue_uuid}", newIframe("${origin}"));
-  `;
+const same_site_origin = get_host_info().HTTPS_ORIGIN;
+const cross_site_origin = get_host_info().HTTPS_NOTSAMESITE_ORIGIN;
+
+async function create_test_iframes(t, response_queue_uuid) {
 
   // Create a same-origin iframe in a cross-site popup.
-  const not_same_site_popup_uuid = newPopup(t, not_same_site_origin);
-  send(not_same_site_popup_uuid, popup_init_script);
+  const not_same_site_popup_uuid = newPopup(t, cross_site_origin);
+  send(not_same_site_popup_uuid,
+       add_iframe_js(same_site_origin, response_queue_uuid));
   const iframe_1_uuid = await receive(response_queue_uuid);
 
   // Create a same-origin iframe in a same-site popup.
-  const same_origin_popup_uuid = newPopup(t, origin);
-  send(same_origin_popup_uuid, popup_init_script);
+  const same_origin_popup_uuid = newPopup(t, same_site_origin);
+  send(same_origin_popup_uuid,
+       add_iframe_js(same_site_origin, response_queue_uuid));
   const iframe_2_uuid = await receive(response_queue_uuid);
 
-  const channel_name = token();
-  const bc = new BroadcastChannel(channel_name);
-  bc.onmessage = t.step_func(e => {
-    assert_equals(e.data, "msg from iframe2");
-    t.done();
-  });
+  return [iframe_1_uuid, iframe_2_uuid];
+}
+
+promise_test(t => {
+  return new Promise(async (resolve, reject) => {
+    const response_queue_uuid = token();
+
+    const [iframe_1_uuid, iframe_2_uuid] =
+      await create_test_iframes(t, response_queue_uuid);
+
+    const channel_name = token();
+    const bc = new BroadcastChannel(channel_name);
+    bc.onmessage = resolve;
 
-  // Instruct the not-same-top-level-site iframe to send a message on the BC
-  // channel we are listening on. This message should not be received since
-  // the iframe should be in a different partition.
-  send(iframe_1_uuid,
-       emit_script(channel_name, "msg from iframe1", response_queue_uuid));
-  assert_equals(await receive(response_queue_uuid), "done");
-
-  // Now instruct the same-top-level-site iframe to send a BC message. By
-  // the time we send the script to execute, have it send the BC message,
-  // and then receive the BC message in our BC instance, it should be
-  // reasonable to assume that the message from the first iframe would have
-  // been delivered if it was going to be.
-  send(iframe_2_uuid,
-       emit_script(channel_name, "msg from iframe2", response_queue_uuid));
-  assert_equals(await receive(response_queue_uuid), "done");
+    // Instruct the not-same-top-level-site iframe to send a message on the BC
+    // channel we are listening on. This message should not be received since
+    // the iframe should be in a different partition.
+    send(iframe_1_uuid,
+         bc_postmessage_js(channel_name, "iframe1 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger iframe1 BroadcastChannel message creation");
+    }
+
+    // Now instruct the same-top-level-site iframe to send a BC message. By
+    // the time we send the script to execute, have it send the BC message,
+    // and then receive the BC message in our BC instance, it should be
+    // reasonable to assume that the message from the first iframe would have
+    // been delivered if it was going to be.
+    send(iframe_2_uuid,
+         bc_postmessage_js(channel_name, "iframe2 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger iframe2 BroadcastChannel message creation");
+    }
+
+  }).then(event => {
+    assert_equals(event.data, "iframe2 msg");
+  });
 
 }, "BroadcastChannel messages aren't received from a cross-partition iframe");
 
+// Optional Test: Checking for partitioned BroadcastChannels in an A->B->A
+// (nested-iframe with cross-site ancestor chain) scenario.
+promise_test(t => {
+  return new Promise(async (resolve, reject) => {
+    const response_queue_uuid = token();
+
+    const [cross_site_iframe_uuid, all_same_parent_iframe_uuid] =
+      await create_test_iframes(t, response_queue_uuid);
+
+    // Create a same-origin iframe in a cross-site iframe in a same-site popup.
+    // Create the same-site child iframe of the cross-site iframe (A->B->A).
+    send(cross_site_iframe_uuid,
+         add_iframe_js(same_site_origin, response_queue_uuid));
+    const same_site_iframe_uuid = await receive(response_queue_uuid);
+
+    // Create a same-origin iframe in a same-site iframe in a same-site popup.
+    // Create the same-site child iframe of the same-site parent iframe (A->A->A).
+    send(all_same_parent_iframe_uuid,
+         add_iframe_js(same_site_origin, response_queue_uuid));
+    const all_same_child_iframe_uuid = await receive(response_queue_uuid);
+
+    const channel_name = token();
+    const bc = new BroadcastChannel(channel_name);
+    bc.onmessage = resolve;
+
+    // Instruct the A->B->A child iframe to send a message on the BC
+    // channel we are listening on. This message should not be received since
+    // the iframe should be in a different partition.
+    send(same_site_iframe_uuid,
+      bc_postmessage_js(channel_name, "iframe1 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger A->B->A BroadcastChannel message creation");
+    }
+
+    // Now instruct the A->A->A child iframe to send a BC message. By
+    // the time we send the script to execute, send the BC message,
+    // and receive the BC message in our BC instance, it should be
+    // reasonable to assume that the message from the first iframe would have
+    // been delivered if it was going to be.
+    send(all_same_child_iframe_uuid,
+      bc_postmessage_js(channel_name, "iframe2 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger A->A->A BroadcastChannel message creation");
+    }
+
+  }).then(event => {
+    assert_equals(event.data, "iframe2 msg");
+  });
+
+}, "BroadcastChannel messages aren't received from a nested iframe with a cross-site ancestor");
+
+const newWorker = (origin) => {
+  const worker_token = token();
+  const worker_url = origin + executor_worker_path + `&uuid=${worker_token}`;
+  const worker = new Worker(worker_url);
+  return worker_token;
+}
+
+promise_test(t => {
+  return new Promise(async (resolve, reject) => {
+    const response_queue_uuid = token();
+
+    const create_worker_js = (origin) => `
+      const importScript = ${importScript};
+      await importScript("/html/cross-origin-embedder-policy/credentialless" +
+                       "/resources/common.js");
+      await importScript("/html/anonymous-iframe/resources/common.js");
+      await importScript("/common/utils.js");
+      const newWorker = ${newWorker};
+      send("${response_queue_uuid}", newWorker("${origin}"));
+    `;
+
+    const [iframe_1_uuid, iframe_2_uuid] =
+      await create_test_iframes(t, response_queue_uuid);
+
+    // Create a dedicated worker in the cross-top-level-site iframe.
+    send(iframe_1_uuid, create_worker_js(same_site_origin));
+    const worker_1_uuid = await receive(response_queue_uuid);
+
+    // Create a dedicated worker in the same-top-level-site iframe.
+    send(iframe_2_uuid, create_worker_js(same_site_origin));
+    const worker_2_uuid = await receive(response_queue_uuid);
+
+    const channel_name = token();
+    const bc = new BroadcastChannel(channel_name);
+    bc.onmessage = async (e) => {
+      await send(worker_1_uuid, "self.close();");
+      await send(worker_2_uuid, "self.close();");
+      resolve(e);
+    };
+
+    // Instruct the not-same-top-level-site worker to send a message on the BC
+    // channel we are listening on. This message should not be received since
+    // the worker should be in a different partition.
+    send(worker_1_uuid,
+         bc_postmessage_js(channel_name, "worker1 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger worker1 BroadcastChannel message creation");
+    }
+
+    // Now instruct the same-top-level-site worker to send a BC message. By
+    // the time we send the script to execute, have it send the BC message,
+    // and then receive the BC message in our BC instance, it should be
+    // reasonable to assume that the message from the first worker would have
+    // been delivered if it was going to be.
+    send(worker_2_uuid,
+         bc_postmessage_js(channel_name, "worker2 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger worker2 BroadcastChannel message creation");
+    }
+
+  }).then(event => {
+    assert_equals(event.data, "worker2 msg");
+  });
+
+}, "BroadcastChannel messages aren't received from a cross-partition dedicated worker");
+
+const newSharedWorker = (origin) => {
+  const worker_token = token();
+  const worker_url = origin + executor_worker_path + `&uuid=${worker_token}`;
+  const worker = new SharedWorker(worker_url, worker_token);
+  return worker_token;
+}
+
+promise_test(t => {
+  return new Promise(async (resolve, reject) => {
+    const response_queue_uuid = token();
+
+    const create_worker_js = (origin) => `
+      const importScript = ${importScript};
+      await importScript("/html/cross-origin-embedder-policy/credentialless" +
+                       "/resources/common.js");
+      await importScript("/html/anonymous-iframe/resources/common.js");
+      await importScript("/common/utils.js");
+      const newSharedWorker = ${newSharedWorker};
+      send("${response_queue_uuid}", newSharedWorker("${origin}"));
+    `;
+
+    const [iframe_1_uuid, iframe_2_uuid] =
+      await create_test_iframes(t, response_queue_uuid);
+
+    // Create a shared worker in the cross-top-level-site iframe.
+    send(iframe_1_uuid, create_worker_js(same_site_origin));
+    const worker_1_uuid = await receive(response_queue_uuid);
+
+    // Create a shared worker in the same-top-level-site iframe.
+    send(iframe_2_uuid, create_worker_js(same_site_origin));
+    const worker_2_uuid = await receive(response_queue_uuid);
+
+    const channel_name = token();
+    const bc = new BroadcastChannel(channel_name);
+    bc.onmessage = async (e) => {
+      await send(worker_1_uuid, "self.close();");
+      await send(worker_2_uuid, "self.close();");
+      resolve(e);
+    };
+
+    // Instruct the not-same-top-level-site worker to send a message on the BC
+    // channel we are listening on. This message should not be received since
+    // the worker should be in a different partition.
+    send(worker_1_uuid,
+         bc_postmessage_js(channel_name, "worker1 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger worker1 BroadcastChannel message creation");
+    }
+
+    // Now instruct the same-top-level-site worker to send a BC message. By
+    // the time we send the script to execute, have it send the BC message,
+    // and then receive the BC message in our BC instance, it should be
+    // reasonable to assume that the message from the first worker would have
+    // been delivered if it was going to be.
+    send(worker_2_uuid,
+         bc_postmessage_js(channel_name, "worker2 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger worker2 BroadcastChannel message creation");
+    }
+
+  }).then(event => {
+    assert_equals(event.data, "worker2 msg");
+  });
+
+}, "BroadcastChannel messages aren't received from a cross-partition shared worker");
+
+const newServiceWorker = async (origin) => {
+  const worker_token = token();
+  const worker_url = origin + executor_service_worker_path +
+                     `&uuid=${worker_token}`;
+  const worker_url_path = executor_service_worker_path.substring(0,
+                              executor_service_worker_path.lastIndexOf('/'));
+  const scope = worker_url_path + "/not-used/";
+  const reg = await navigator.serviceWorker.register(worker_url,
+                                                     {'scope': scope});
+  return worker_token;
+}
+
+promise_test(t => {
+  return new Promise(async (resolve, reject) => {
+    const response_queue_uuid = token();
+
+    const create_worker_js = (origin) => `
+      const importScript = ${importScript};
+      await importScript("/html/cross-origin-embedder-policy/credentialless" +
+                       "/resources/common.js");
+      await importScript("/html/anonymous-iframe/resources/common.js");
+      await importScript("/common/utils.js");
+      const newServiceWorker = ${newServiceWorker};
+      send("${response_queue_uuid}", await newServiceWorker("${origin}"));
+    `;
+
+    const [iframe_1_uuid, iframe_2_uuid] =
+      await create_test_iframes(t, response_queue_uuid);
+
+    // Create a service worker in the cross-top-level-site iframe.
+    send(iframe_1_uuid, create_worker_js(same_site_origin));
+    var worker_1_uuid = await receive(response_queue_uuid);
+
+    const channel_name = token();
+    const bc = new BroadcastChannel(channel_name);
+    bc.onmessage = async (e) => {
+      if (worker_1_uuid) {
+        await send(worker_1_uuid, "self.registration.unregister();");
+      }
+      if (worker_2_uuid) {
+        await send(worker_2_uuid, "self.registration.unregister();");
+      }
+      resolve(e);
+    };
+
+    // Instruct the not-same-top-level-site worker to send a message on the BC
+    // channel we are listening on. This message should not be received since
+    // the worker should be in a different partition.
+    send(worker_1_uuid,
+         bc_postmessage_js(channel_name, "worker1 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger worker1 BroadcastChannel message creation");
+    }
+
+    await send(worker_1_uuid, "await self.registration.unregister();");
+    worker_1_uuid = undefined;
+
+    // Create a service worker in the same-top-level-site iframe. Note that
+    // if service workers are unpartitioned then this new service worker would
+    // replace the one created above. This is why we wait to create the second
+    // service worker until after we are done with the first one.
+    send(iframe_2_uuid, create_worker_js(same_site_origin));
+    var worker_2_uuid = await receive(response_queue_uuid);
+
+    // Now instruct the same-top-level-site worker to send a BC message. By
+    // the time we send the script to execute, have it send the BC message,
+    // and then receive the BC message in our BC instance, it should be
+    // reasonable to assume that the message from the first worker would have
+    // been delivered if it was going to be.
+    send(worker_2_uuid,
+         bc_postmessage_js(channel_name, "worker2 msg", response_queue_uuid));
+    if (await receive(response_queue_uuid) != "done") {
+      reject("Unable to trigger worker2 BroadcastChannel message creation");
+    }
+
+    await send(worker_2_uuid, "await self.registration.unregister();");
+    worker_2_uuid = undefined;
+
+  }).then(event => {
+    assert_equals(event.data, "worker2 msg");
+  });
+
+}, "BroadcastChannel messages aren't received from a cross-partition service worker");
+
 </script>
 </body>
diff --git a/test/fixtures/wpt/webmessaging/broadcastchannel/opaque-origin.html b/test/fixtures/wpt/webmessaging/broadcastchannel/opaque-origin.html
index c10e0cb22256a0..e09d935244b8b6 100644
--- a/test/fixtures/wpt/webmessaging/broadcastchannel/opaque-origin.html
+++ b/test/fixtures/wpt/webmessaging/broadcastchannel/opaque-origin.html
@@ -2,6 +2,7 @@
 <html>
 <head>
 <meta charset=utf-8>
+<meta name="timeout" content="long">
 <title></title>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
@@ -26,9 +27,166 @@
         assert_equals(e.data.messageOrigin, "null");
         resolve();
       }), {once: true});
+    t.add_cleanup(() => { document.body.removeChild(ifr) });
     document.body.appendChild(ifr);
     });
 }, "Opaque origin should be serialized to \"null\"");
+
+
+const iframe_src = (channel_name, iframe_name) => `data:text/html,<script>
+let bc2 = new BroadcastChannel("${channel_name}");
+bc2.onmessage = (e) => {
+  if (e.data == "from-${iframe_name}") {
+    parent.postMessage("${iframe_name}-done", "*");
+  } else {
+    parent.postMessage("fail", "*");
+  }
+};
+let bc3 = new BroadcastChannel("${channel_name}");
+bc3.postMessage("from-${iframe_name}");
+</script>`;
+
+promise_test(t => {
+  return new Promise((resolve, reject) => {
+    const channel_name = "opaque-origin-test-2";
+    const bc1 = new BroadcastChannel(channel_name);
+    bc1.onmessage = t.unreached_func("Received message from an opaque origin");
+
+    // We'll create an iframe and have it send a BroadcastChannel message
+    // between two instances. Once the message is received, it will postMessage
+    // back and we'll repeat this with another iframe. If the first
+    // BroadcastChannel message is received by `bc1`, or if the second
+    // BroadcastChannel message is received by `bc1` or `bc2` in the first
+    // iframe, then the test should fail.
+
+    window.addEventListener("message", e => {
+      if(e.data == "iframe1-done") {
+        let iframe2 = document.createElement("iframe");
+        iframe2.src = iframe_src(channel_name, "iframe2");
+        t.add_cleanup(() => { document.body.removeChild(iframe2) });
+        document.body.appendChild(iframe2);
+      } else if(e.data == "iframe2-done") {
+        resolve();
+      } else if(e.data == "fail") {
+        reject("One opaque origin received a message from the other");
+      } else {
+        reject("An unexpected error occurred");
+      }
+    });
+
+    let iframe1 = document.createElement("iframe");
+    iframe1.src = iframe_src(channel_name, "iframe1");
+    t.add_cleanup(() => { document.body.removeChild(iframe1) });
+    document.body.appendChild(iframe1);
+    });
+}, "BroadcastChannel messages from opaque origins should be self-contained");
+
+const data_url_worker_src = (channel_name, worker_name) => {
+  const source = `
+const handler = (reply) => {
+  let bc2 = new BroadcastChannel("${channel_name}");
+  bc2.onmessage = (e) => {
+    if (e.data == "from-${worker_name}") {
+      reply("${worker_name}-done");
+    } else {
+      reply("fail");
+    }
+  };
+  let bc3 = new BroadcastChannel("${channel_name}");
+  bc3.postMessage("from-${worker_name}");
+};
+// For dedicated workers:
+self.addEventListener("message", () => handler(self.postMessage));
+// For shared workers:
+self.addEventListener("connect", (e) => {
+  var port = e.ports[0];
+  port.onmessage = () => handler(msg => port.postMessage(msg));
+  port.start();
+
+});
+`;
+  return "data:,".concat(encodeURIComponent(source));
+}
+
+promise_test(t => {
+  return new Promise((resolve, reject) => {
+    const channel_name = "opaque-origin-test-3";
+    const bc1 = new BroadcastChannel(channel_name);
+    bc1.onmessage = e => { reject("Received message from an opaque origin"); };
+
+    // Same as the previous test but with data URL dedicated workers (which
+    // should have opaque origins per the HTML spec).
+    const worker_name_prefix = "data-url-dedicated-worker";
+    const worker_1_name = `${worker_name_prefix}-1`;
+    const worker_2_name = `${worker_name_prefix}-2`;
+
+    const handler = e => {
+      if(e.data == `${worker_1_name}-done`) {
+        const worker2 = new Worker(data_url_worker_src(channel_name, worker_2_name));
+        t.add_cleanup(() => worker2.terminate());
+        worker2.addEventListener("message", handler);
+        worker2.postMessage("go!");
+      } else if(e.data == `${worker_2_name}-done`) {
+        resolve();
+      } else if(e.data == "fail") {
+        reject("One opaque origin received a message from the other");
+      } else {
+        reject("An unexpected error occurred");
+      }
+    };
+
+    let worker1 = new Worker(data_url_worker_src(channel_name, worker_1_name));
+    t.add_cleanup(() => worker1.terminate());
+    worker1.addEventListener("message", handler);
+    worker1.postMessage("go!");
+    });
+}, "BroadcastChannel messages from data URL dedicated workers should be self-contained");
+
+promise_test(() => {
+  return new Promise((resolve, reject) => {
+    const channel_name = "opaque-origin-test-4";
+    const bc1 = new BroadcastChannel(channel_name);
+
+    // Same as the previous test but with data URL shared workers (which
+    // should have opaque origins per the HTML spec).
+    const worker_name_prefix = "data-url-shared-worker";
+    const worker_1_name = `${worker_name_prefix}-1`;
+    const worker_2_name = `${worker_name_prefix}-2`;
+
+    const handler = e => {
+      if (e.data == `${worker_1_name}-done`) {
+        const worker_script = data_url_worker_src(channel_name, worker_2_name);
+        const worker2 = new SharedWorker(worker_script, worker_2_name);
+        worker2.port.addEventListener("message", handler);
+        worker2.port.start();
+        worker2.port.postMessage("go!");
+      } else if(e.data == `${worker_2_name}-done`) {
+        resolve();
+      } else if(e.data == "fail") {
+        reject("One opaque origin received a message from the other");
+      } else {
+        reject("An unexpected error occurred");
+      }
+    };
+
+    bc1.onmessage = e => {
+      if (e.data == "go!") {
+        const worker_script = data_url_worker_src(channel_name, worker_1_name);
+        const worker1 = new SharedWorker(worker_script, worker_1_name);
+        worker1.port.addEventListener("message", handler);
+        worker1.port.start();
+        worker1.port.postMessage("go!");
+      } else {
+        reject("Received message from an opaque origin");
+      }
+    };
+
+    // Ensure that the BroadcastChannel instance above can receive messages
+    // before we create the first shared worker.
+    const bc2 = new BroadcastChannel(channel_name);
+    bc2.postMessage("go!");
+    });
+}, "BroadcastChannel messages from data URL shared workers should be self-contained");
 //-->
 </script>
 </body>
diff --git a/test/fixtures/wpt/webmessaging/broadcastchannel/resources/worker.js b/test/fixtures/wpt/webmessaging/broadcastchannel/resources/worker.js
index df23072bc99f95..ee2d51a2542567 100644
--- a/test/fixtures/wpt/webmessaging/broadcastchannel/resources/worker.js
+++ b/test/fixtures/wpt/webmessaging/broadcastchannel/resources/worker.js
@@ -1,6 +1,8 @@
+importScripts("/common/gc.js");
+
 var c;
 
-function handler(e, reply) {
+async function handler(e, reply) {
   if (e.data.ping) {
     c.postMessage(e.data.ping);
     return;
@@ -9,9 +11,7 @@ function handler(e, reply) {
     (() => {
       c.postMessage({blob: new Blob(e.data.blob)});
     })();
-    // TODO(https://github.com/web-platform-tests/wpt/issues/7899): Change to
-    // some sort of cross-browser GC trigger.
-    if (self.gc) self.gc();
+    await garbageCollect();
   }
   c = new BroadcastChannel(e.data.channel);
   let messages = [];
diff --git a/test/wpt/status/FileAPI/blob.json b/test/wpt/status/FileAPI/blob.json
index 902ac232dd4872..017d931d7abdc4 100644
--- a/test/wpt/status/FileAPI/blob.json
+++ b/test/wpt/status/FileAPI/blob.json
@@ -17,6 +17,7 @@
         "ArrayBuffer elements of the blobParts array should be supported.",
         "Passing typed arrays as elements of the blobParts array should work.",
         "Passing a Float64Array as element of the blobParts array should work.",
+        "Passing BigInt typed arrays as elements of the blobParts array should work.",
         "Array with two blobs",
         "Array with two buffers",
         "Array with two bufferviews",
@@ -43,5 +44,12 @@
   },
   "Blob-slice.any.js": {
     "skip": "Depends on File API"
+  },
+  "Blob-stream.any.js": {
+    "fail": {
+      "expected": [
+        "Reading Blob.stream() with BYOB reader"
+      ]
+    }
   }
 }
diff --git a/test/wpt/status/streams.json b/test/wpt/status/streams.json
index 9899c581d9f96e..187b1758741785 100644
--- a/test/wpt/status/streams.json
+++ b/test/wpt/status/streams.json
@@ -1,4 +1,11 @@
 {
+  "idlharness.any.js": {
+    "fail": {
+      "expected": [
+        "ReadableStream interface: async iterable<any>"
+      ]
+    }
+  },
   "queuing-strategies-size-function-per-global.window.js": {
     "skip": "Browser-specific test"
   },
diff --git a/test/wpt/status/url.json b/test/wpt/status/url.json
index a0957dccb53c73..c333559537f6a9 100644
--- a/test/wpt/status/url.json
+++ b/test/wpt/status/url.json
@@ -9,7 +9,9 @@
   "historical.any.js": {
     "requires": ["small-icu"],
     "fail": {
+      "note": "We are faking location with a URL object for the sake of the testharness and it has searchParams.",
       "expected": [
+        "searchParams on location object",
         "URL: no structured serialize/deserialize support",
         "URLSearchParams: no structured serialize/deserialize support"
       ]
diff --git a/test/wpt/test-streams.js b/test/wpt/test-streams.js
index faf906efb2ef74..71c25fbd56b20c 100644
--- a/test/wpt/test-streams.js
+++ b/test/wpt/test-streams.js
@@ -6,30 +6,5 @@ const runner = new WPTRunner('streams');
 
 // Set a script that will be executed in the worker before running the tests.
 runner.pretendGlobalThisAs('Window');
-runner.setInitScript(`
-  // Simulate global postMessage for enqueue-with-detached-buffer.window.js
-  function postMessage(value, origin, transferList) {
-    const mc = new MessageChannel();
-    mc.port1.postMessage(value, transferList);
-    mc.port2.close();
-  }
-
-  // TODO(@jasnell): This is a bit of a hack to get the idl harness test
-  // working. Later we should investigate a better approach.
-  // See: https://github.com/nodejs/node/pull/39062#discussion_r659383373
-  Object.defineProperties(global, {
-    DedicatedWorkerGlobalScope: {
-      get() {
-        // Pretend that we're a DedicatedWorker, but *only* for the
-        // IDL harness. For everything else, keep the JavaScript shell
-        // environment.
-        if (new Error().stack.includes('idlharness.js'))
-          return global.constructor;
-        else
-          return function() {};
-      }
-    }
-  });
-`);
 
 runner.runJsTests();
diff --git a/test/wpt/test-url.js b/test/wpt/test-url.js
index f8ba3c3839d642..fc84c22a275c38 100644
--- a/test/wpt/test-url.js
+++ b/test/wpt/test-url.js
@@ -13,7 +13,4 @@ runner.setScriptModifier((obj) => {
   }
 });
 runner.pretendGlobalThisAs('Window');
-runner.setInitScript(`
-  globalThis.location ||= {};
-`);
 runner.runJsTests();