A bunch of fixes in idl database generator.

client/dom/generated/src/frog/MediaStream.dart

+
+class _MediaStreamJs extends _DOMTypeJs implements MediaStream native "*MediaStream" {
+
+  static final int ENDED = 2;
+
+  static final int LIVE = 1;
+
+  final _MediaStreamTrackListJs audioTracks;
+
+  final String label;
+
+  EventListener onended;
+
+  final int readyState;
+
+  final _MediaStreamTrackListJs videoTracks;
+
+  void addEventListener(String type, EventListener listener, [bool useCapture = null]) native;
+
+  bool dispatchEvent(_EventJs event) native;
+
+  void removeEventListener(String type, EventListener listener, [bool useCapture = null]) native;
+}