Add NativeEnqueuer to work with the Enqueuer.

sdk/lib/html/dart2js/html_dart2js.dart

Index: sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index 8f57237866b59614b7124ae17e72be5eccd71d55..36793c2c992712eb14761663629023d61c534618 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -4442,6 +4442,10 @@ class CanvasRenderingContext native "*CanvasRenderingContext" {
 // BSD-style license that can be found in the LICENSE file.
 
 
+const _createsImageData = const Creates(
+    'ImageData'  /* Chrome */
+    '|=Object'   /* FireFox*/);
+
 class CanvasRenderingContext2D extends CanvasRenderingContext native "*CanvasRenderingContext2D" {
 
   /** @domName CanvasRenderingContext2D.fillStyle */
@@ -4540,7 +4544,11 @@ class CanvasRenderingContext2D extends CanvasRenderingContext native "*CanvasRen
     }
     throw const Exception("Incorrect number or type of arguments");
   }
+
+  @_createsImageData
   _createImageData_1(imagedata) native "createImageData";
+
+  @_createsImageData
   _createImageData_2(num sw, sh) native "createImageData";
 
   /** @domName CanvasRenderingContext2D.createLinearGradient */
@@ -5809,6 +5817,9 @@ class Database native "*Database" {
 
 
 typedef void DatabaseCallback(database);
+
+const _createsDatabase = const Creates('Database|DatabaseSync');
+
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
@@ -9549,6 +9560,7 @@ class IDBCursor native "*IDBCursor" {
   final String direction;
 
   /** @domName IDBCursor.key */
+  @_createsIDBKey
   final Object key;
 
   /** @domName IDBCursor.primaryKey */
@@ -9588,10 +9600,23 @@ class IDBCursor native "*IDBCursor" {
 // BSD-style license that can be found in the LICENSE file.
 
 
+const _createsSSV = const Creates(
+    '=Object|=List|num|String|bool'
+    // Date, RegExp,
+    '|File|Blob|_FileList|ImageData'
+    '|ArrayBuffer|ArrayBufferView' );
+
+const _createsIDBValue = _createsSSV;
+
+const _createsIDBKey = const Creates(
+    // Date,
+    'num|String|bool|=List');
+
 /// @domName IDBCursorWithValue
 class IDBCursorWithValue extends IDBCursor native "*IDBCursorWithValue" {
 
   /** @domName IDBCursorWithValue.value */
+  @_createsIDBValue
   final Object value;
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
@@ -9766,7 +9791,10 @@ class IDBFactory native "*IDBFactory" {
   /** @domName IDBFactory.deleteDatabase */
   IDBVersionChangeRequest deleteDatabase(String name) native;
 
+  static const _createsIDBDatabase = const Creates('IDBDatabase');
+  static const _createsIDBRequest = const Creates('IDBRequest');
   /** @domName IDBFactory.open */
+  @_createsIDBDatabase @_createsIDBRequest
   IDBOpenDBRequest open(String name, [int version]) native;
 
   /** @domName IDBFactory.webkitGetDatabaseNames */
@@ -10150,10 +10178,21 @@ class IDBObjectStore native "*IDBObjectStore" {
     }
     throw const Exception("Incorrect number or type of arguments");
   }
+
+  static const _xx1 = const Creates('IDBCursorWithValue|IDBCursor');
+  @_xx1
   IDBRequest _openCursor_1() native "openCursor";
+
+  @_xx1
   IDBRequest _openCursor_2(IDBKeyRange range) native "openCursor";
+
+  @_xx1
   IDBRequest _openCursor_3(IDBKeyRange range, direction) native "openCursor";
+
+  @_xx1
   IDBRequest _openCursor_4(key) native "openCursor";
+
+  @_xx1
   IDBRequest _openCursor_5(key, direction) native "openCursor";
 
   /** @domName IDBObjectStore.put */
@@ -11711,6 +11750,7 @@ class LocalWindow extends EventTarget implements Window native "@*DOMWindow" {
   void moveTo(num x, num y) native;
 
   /** @domName DOMWindow.openDatabase */
+  @_createsDatabase
   Database openDatabase(String name, String version, String displayName, int estimatedSize, [DatabaseCallback creationCallback]) native;
 
   /** @domName Window.postMessage */
@@ -12674,7 +12714,7 @@ class MessageEvent extends Event native "*MessageEvent" {
   final String origin;
 
   /** @domName MessageEvent.ports */
-  final List ports;
+  final List<MessagePort> ports;
 
   /** @domName MessageEvent.source */
   Window get source => _convertNativeToDart_Window(this._source);
@@ -15501,7 +15541,10 @@ class SQLResultSetRowList implements JavaScriptIndexingBehavior, List<Map> nativ
   Map item(int index) {
     return _convertNativeToDart_Dictionary(_item_1(index));
   }
+  @_createsJsObject
   _item_1(index) native "item";
+
+  static const _createsJsObject = const Creates('=Object');
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
@@ -19786,9 +19829,11 @@ class WorkerContext extends EventTarget native "*WorkerContext" {
   void importScripts() native;
 
   /** @domName WorkerContext.openDatabase */
+  @_createsDatabase
   Database openDatabase(String name, String version, String displayName, int estimatedSize, [DatabaseCallback creationCallback]) native;
 
   /** @domName WorkerContext.openDatabaseSync */
+  @_createsDatabase
   DatabaseSync openDatabaseSync(String name, String version, String displayName, int estimatedSize, [DatabaseCallback creationCallback]) native;
 
   /** @domName WorkerContext.removeEventListener */
@@ -24167,7 +24212,7 @@ _convertDartToNative_PrepareForStructuredClone(value) {
       var copy = readSlot(slot);
       if (copy != null) {
         if (true == copy) {  // Cycle, so commit to making a copy.
-          copy = JS('List', 'new Array(#)', length);
+          copy = JS('=List', 'new Array(#)', length);
           writeSlot(slot, copy);
         }
         return copy;
@@ -24187,7 +24232,7 @@ _convertDartToNative_PrepareForStructuredClone(value) {
           if (!identical(elementCopy, element)) {
             copy = readSlot(slot);   // Cyclic reference may have created it.
             if (true == copy) {
-              copy = JS('List', 'new Array(#)', length);
+              copy = JS('=List', 'new Array(#)', length);
               writeSlot(slot, copy);
             }
             for (int j = 0; j < i; j++) {
@@ -24204,7 +24249,7 @@ _convertDartToNative_PrepareForStructuredClone(value) {
         }
       } else {
         // Not a JavaScript Array.  We are forced to make a copy.
-        copy = JS('List', 'new Array(#)', length);
+        copy = JS('=List', 'new Array(#)', length);
         writeSlot(slot, copy);
       }
 
@@ -24298,7 +24343,7 @@ _convertNativeToDart_AcceptStructuredClone(object, {mustCopy = false}) {
       int length = e.length;
       // Since a JavaScript Array is an instance of Dart List, we can modify it
       // in-place unless we must copy.
-      copy = mustCopy ? JS('List', 'new Array(#)', length) : e;
+      copy = mustCopy ? JS('=List', 'new Array(#)', length) : e;
       writeSlot(slot, copy);
 
       for (int i = 0; i < length; i++) {