Fix missing generic type parameters on streams.

sdk/lib/async/stream_controller.dart

Index: sdk/lib/async/stream_controller.dart
diff --git a/sdk/lib/async/stream_controller.dart b/sdk/lib/async/stream_controller.dart
index 26bbb14706cb55d971db51bce691f7f41a0f6183..f856b61526d1addf93a50ba25bfa134929433fa6 100644
--- a/sdk/lib/async/stream_controller.dart
+++ b/sdk/lib/async/stream_controller.dart
@@ -639,8 +639,8 @@ abstract class _StreamController<T> implements StreamController<T>,
       throw new StateError("Stream has already been listened to.");
     }
     _ControllerSubscription subscription =
-        new _ControllerSubscription(this, onData, onError, onDone,
-                                    cancelOnError);
+        new _ControllerSubscription<T>(this, onData, onError, onDone,
+                                       cancelOnError);
 
     _PendingEvents pendingEvents = _pendingEvents;
     _state |= _STATE_SUBSCRIBED;