Can now correctly add documentation to constructors.

sdk/lib/web_audio/dart2js/web_audio_dart2js.dart

 library web_audio;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:_foreign_helper' show JS;
 // DO NOT EDIT
 // Auto-generated dart:audio library.
 
@@ skipping 668 matching lines @@
 }
 // 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.
 
 
 @DocsEditable
 @DomName('OfflineAudioContext')
 class OfflineAudioContext extends AudioContext implements EventTarget native "*OfflineAudioContext" {
 
+  @DomName('OfflineAudioContext.OfflineAudioContext')
   @DocsEditable
   factory OfflineAudioContext(int numberOfChannels, int numberOfFrames, num sampleRate) {
     return OfflineAudioContext._create_1(numberOfChannels, numberOfFrames, sampleRate);
   }
   static OfflineAudioContext _create_1(numberOfChannels, numberOfFrames, sampleRate) => JS('OfflineAudioContext', 'new OfflineAudioContext(#,#,#)', numberOfChannels, numberOfFrames, sampleRate);
 }
 // 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.
 
@@ skipping 141 matching lines @@
 }
 // 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.
 
 
 @DocsEditable
 @DomName('WaveTable')
 class WaveTable native "*WaveTable" {
 }