A bunch of fixes in idl database generator.

client/dom/generated/src/wrapping/_MediaStreamEventWrappingImplementation.dart

+// Copyright (c) 2011, 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.
+
+// WARNING: Do not edit - generated code.
+
+class _MediaStreamEventWrappingImplementation extends _EventWrappingImplementation implements MediaStreamEvent {
+  _MediaStreamEventWrappingImplementation() : super() {}
+
+  static create__MediaStreamEventWrappingImplementation() native {
+    return new _MediaStreamEventWrappingImplementation();
+  }
+
+  MediaStream get stream() { return _get_stream(this); }
+  static MediaStream _get_stream(var _this) native;
+
+  String get typeName() { return "MediaStreamEvent"; }
+}