Revert "Workaround #537"

Undoing this.  Paul fixed this in 1.17.  We'll need to run with 1.17 builds going forward, but we need that for other reasons.

Fixes #537

R=jacobr@google.com

Review URL: https://codereview.chromium.org/1936693002 .

pkg/dev_compiler/lib/runtime/dart_sdk.js

@@ -29344,8 +29344,8 @@ dart_library.library('dart_sdk', null, /* Imports */[
   const _checkInsertIndex = Symbol('_checkInsertIndex');
   js.JsArray$ = dart.generic(E => {
     class JsArray extends dart.mixin(js.JsObject, collection.ListMixin$(E)) {
-      static new() {
-        return new (js.JsArray$(E))._fromJs([]);
+      JsArray() {
+        super._fromJs([]);
       }
       from(other) {
         super._fromJs((() => {
@@ -29446,7 +29446,7 @@ dart_library.library('dart_sdk', null, /* Imports */[
     dart.defineNamedConstructor(JsArray, '_fromJs');
     dart.setSignature(JsArray, {
       constructors: () => ({
-        new: [js.JsArray$(E), []],
+        JsArray: [js.JsArray$(E), []],
         from: [js.JsArray$(E), [core.Iterable$(E)]],
         _fromJs: [js.JsArray$(E), [dart.dynamic]]
       }),

pkg/dev_compiler/tool/input_sdk/lib/js/dart2js/js_dart2js.dart

@@ -317,8 +317,7 @@ class JsArray<E> extends JsObject with ListMixin<E> {
   /**
    * Creates a new JavaScript array.
    */
-  // TODO(vsm): Making this a factory to workaround #537.
-  factory JsArray() { return new JsArray._fromJs([]); }
+  JsArray() : super._fromJs([]);
 
   /**
    * Creates a new JavaScript array and initializes it to the contents of