Core: Remove unused and undocumented QUnit.dump.HTML and `QUnit.dum…

…p.multiline`

These have been unused and undocumented since QUnit 1.0.0, with
as part of the embedded jsDump library.

In searching public git.luolix.top-hosted repositories, I found (apart
from copies of qunit.js and its own tests):

* 1 use of QUnit.dump.HTML (riboseinc/jquery-bbq), which appears
  redundant as it sets false, and will be gracefully ignored either
  way as unused created property if kept as setting after QUnit 3.0.

* 1 use of QUnit.dump.multiline (Morgas01/Morgas.js), which appears
  to be a preference not mechanically relied upon. This will no longer
  be supported in QUnit 3.0, and will be silently ignored in QUnit 3.0.

src/dump.js

@@ -140,22 +140,12 @@ export default (function () {
     },
 
     separator: function () {
-      if (this.multiline) {
-        return this.HTML ? '<br />' : '\n';
-      } else {
-        return this.HTML ? '&#160;' : ' ';
-      }
+      return '\n';
     },
 
     // Extra can be a number, shortcut for increasing-calling-decreasing
     indent: function (extra) {
-      if (!this.multiline) {
-        return '';
-      }
       let chr = this.indentChar;
-      if (this.HTML) {
-        chr = chr.replace(/\t/g, '   ').replace(/ /g, '&#160;');
-      }
       return new Array(this.depth + (extra || 0)).join(chr);
     },
     up: function (a) {
@@ -237,8 +227,8 @@ export default (function () {
         return join('{', ret, '}');
       },
       node: function (node) {
-        const open = dump.HTML ? '&lt;' : '<';
-        const close = dump.HTML ? '&gt;' : '>';
+        const open = '<';
+        const close = '>';
         const tag = node.nodeName.toLowerCase();
         let ret = open + tag;
         const attrs = node.attributes;
@@ -300,14 +290,8 @@ export default (function () {
       }
     },
 
-    // If true, entities are escaped ( <, >, \t, space and \n )
-    HTML: false,
-
     // Indentation unit
-    indentChar: '  ',
-
-    // If true, items in a collection, are separated by a \n, else just a space.
-    multiline: true
+    indentChar: '  '
   };
 
   return dump;

test/main/dump.js

@@ -96,13 +96,6 @@ QUnit.test('error [subclass]', function (assert) {
   });
 });
 
-QUnit.test('array [shallow]', function (assert) {
-  QUnit.dump.maxDepth = 1;
-  assert.equal(
-    QUnit.dump.parse([[]]),
-    '[\n  [object Array]\n]');
-});
-
 QUnit.test('regex', function (assert) {
   assert.equal(QUnit.dump.parse(/foo/), '/foo/');
 });
@@ -141,30 +134,6 @@ QUnit.test('function [unnamed]', function (assert) {
   assert.equal(QUnit.dump.parse(f), 'function( a, b ){\n  [code]\n}');
 });
 
-QUnit.test('array [multiline=false]', function (assert) {
-  QUnit.dump.multiline = false;
-
-  assert.equal(QUnit.dump.parse([[]]), '[ [] ]');
-
-  QUnit.dump.multiline = true;
-});
-
-QUnit.test('array [HTML=true]', function (assert) {
-  QUnit.dump.HTML = true;
-
-  assert.equal(
-    QUnit.dump.parse([1, 2]),
-    '[<br />&#160;&#160;1,<br />&#160;&#160;2<br />]');
-
-  QUnit.dump.multiline = false;
-  assert.equal(
-    QUnit.dump.parse([1, 2]),
-    '[&#160;1,&#160;2&#160;]');
-
-  QUnit.dump.multiline = true;
-  QUnit.dump.HTML = false;
-});
-
 QUnit.test('window, document, node [fake]', function (assert) {
   var fakeWindow = {
     setInterval: [],
@@ -184,13 +153,6 @@ QUnit.test('window, document, node [fake]', function (assert) {
   assert.equal(
     QUnit.dump.parse(fakeTextNode),
     '<faketextnode>fakeValue</faketextnode>');
-
-  QUnit.dump.HTML = true;
-  assert.equal(
-    QUnit.dump.parse(fakeTextNode),
-    '&lt;faketextnode&gt;fakeValue&lt;/faketextnode&gt;');
-
-  QUnit.dump.HTML = false;
 });
 
 QUnit.test.if('node [real DOM]', typeof document !== 'undefined', function (assert) {
@@ -279,6 +241,22 @@ QUnit.test('object equal/deepEqual [recursion]', function (assert) {
   assert.deepEqual(circref, circref, '... and checked on all levels!');
 });
 
+QUnit.test('array [basic]', function (assert) {
+  assert.equal(QUnit.dump.parse([[]]), '[\n  []\n]');
+
+  assert.equal(
+    QUnit.dump.parse([1, 2]),
+    '[\n  1,\n  2\n]'
+  );
+});
+
+QUnit.test('array [shallow]', function (assert) {
+  QUnit.dump.maxDepth = 1;
+  assert.equal(
+    QUnit.dump.parse([[]]),
+    '[\n  [object Array]\n]');
+});
+
 QUnit.test('array [recursion]', function (assert) {
   // Pure array self-ref
   var arr = [];