Adding annotations for native types of type Object or dynamic.

sdk/lib/web_audio/dart2js/web_audio_dart2js.dart

 library dart.dom.web_audio;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:_collection-dev';
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:typed_data';
 import 'dart:_js_helper' show Creates, JSName, Returns, convertDartClosureToJS;
 import 'dart:_foreign_helper' show JS;
@@ skipping 322 matching lines @@
   GainNode createGain() {
     if (JS('bool', '#.createGain !== undefined', this)) {
       return JS('GainNode', '#.createGain()', this);
     } else {
       return JS('GainNode', '#.createGainNode()', this);
     }
   }
 
   ScriptProcessorNode createScriptProcessor(int bufferSize,
       [int numberOfInputChannels, int numberOfOutputChannels]) {
-    var function = JS('dynamic', '#.createScriptProcessor || '
+    var function = JS('=Object', '#.createScriptProcessor || '
         '#.createJavaScriptNode', this, this);
     if (numberOfOutputChannels != null) {
       return JS('ScriptProcessorNode', '#.call(#, #, #, #)', function, this,
           bufferSize, numberOfInputChannels, numberOfOutputChannels);
     } else if (numberOfInputChannels != null) {
       return JS('ScriptProcessorNode', '#.call(#, #, #)', function, this,
           bufferSize, numberOfInputChannels);
     } else {
       return JS('ScriptProcessorNode', '#.call(#, #)', function, this,
           bufferSize);
@@ skipping 703 matching lines @@
 // 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.
 
 
 @DocsEditable
 @DomName('WaveTable')
 // https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/specification.html#WaveTable-section
 @Experimental
 class WaveTable native "WaveTable" {
 }