A bunch of fixes in idl database generator.

client/dom/generated/src/wrapping/_MediaStreamTrackListWrappingImplementation.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 _MediaStreamTrackListWrappingImplementation extends DOMWrapperBase implements MediaStreamTrackList {
+  _MediaStreamTrackListWrappingImplementation() : super() {}
+
+  static create__MediaStreamTrackListWrappingImplementation() native {
+    return new _MediaStreamTrackListWrappingImplementation();
+  }
+
+  int get length() { return _get_length(this); }
+  static int _get_length(var _this) native;
+
+  MediaStreamTrack item(int index) {
+    return _item(this, index);
+  }
+  static MediaStreamTrack _item(receiver, index) native;
+
+  String get typeName() { return "MediaStreamTrackList"; }
+}