Support overloaded constructors.

sdk/lib/chrome/dart2js/chrome_dart2js.dart

+library chrome;
+
+import 'dart:_foreign_helper' show JS;
+import 'dart:html_common';
+import 'dart:html';
 // Copyright (c) 2013, 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.
 
 // DO NOT EDIT
 // Auto-generated dart:chrome library.
 
-library chrome;
 
-import 'dart:_foreign_helper' show JS;
-import 'dart:html_common';
-import 'dart:html';
+
+
+// Copyright (c) 2013, 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.
 
 /**
  * A set of utilities for use with the Chrome Extension APIs.
  *
  * Allows for easy access to required JS objects.
  */
 
 /**
  * A dart object, that is convertible to JS. Used for creating objects in dart,
  * then passing them to JS.
@@ skipping 947 matching lines @@
         callback(new AppWindow._proxy(created_window));
     }
 
     JS("void", "#.create(#, #, #)",
        this._jsObject,
        url,
        convertArgument(options),
        convertDartClosureToJS(__proxy_callback, 1)
     );
   }
-}
+}