A bunch of fixes in idl database generator.

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

+
+class _PeerConnectionJs extends _DOMTypeJs implements PeerConnection native "*PeerConnection" {
+
+  static final int ACTIVE = 2;
+
+  static final int CLOSED = 3;
+
+  static final int NEGOTIATING = 1;
+
+  static final int NEW = 0;
+
+  final _MediaStreamListJs localStreams;
+
+  EventListener onaddstream;
+
+  EventListener onconnecting;
+
+  EventListener onmessage;
+
+  EventListener onopen;
+
+  EventListener onremovestream;
+
+  final int readyState;
+
+  final _MediaStreamListJs remoteStreams;
+
+  void addEventListener(String type, EventListener listener, bool useCapture) native;
+
+  void addStream(_MediaStreamJs stream) native;
+
+  void close() native;
+
+  bool dispatchEvent(_EventJs event) native;
+
+  void processSignalingMessage(String message) native;
+
+  void removeEventListener(String type, EventListener listener, bool useCapture) native;
+
+  void removeStream(_MediaStreamJs stream) native;
+
+  void send(String text) native;
+}