fix super ctor logic

lib/runtime/dart/async.js

 var async;
 (function(exports) {
   'use strict';
   // Function _invokeErrorHandler: (Function, Object, StackTrace) → dynamic
   function _invokeErrorHandler(errorHandler, error, stackTrace) {
     if (dart.is(errorHandler, ZoneBinaryCallback)) {
       return dart.dcall(errorHandler, error, stackTrace);
     } else {
       return dart.dcall(errorHandler, error);
     }
@@ skipping 778 matching lines @@
       }
       [_onListen](subscription) {}
     }
     return _StreamImpl;
   });
   let _StreamImpl = _StreamImpl$();
   let _ControllerStream$ = dart.generic(function(T) {
     class _ControllerStream extends _StreamImpl$(T) {
       _ControllerStream(controller) {
         this[_controller] = controller;
-        super._StreamImpl();
       }
       [_createSubscription](onData, onError, onDone, cancelOnError) {
         return this[_controller][_subscribe](onData, onError, onDone, cancelOnError);
       }
       get hashCode() {
         return dart.notNull(this[_controller].hashCode) ^ 892482866;
       }
       ['=='](other) {
         if (core.identical(this, other))
           return true;
@@ skipping 2368 matching lines @@
     return _EventDispatch;
   });
   let _EventDispatch = _EventDispatch$();
   let _EventGenerator = dart.typedef('_EventGenerator', () => dart.functionType(_PendingEvents, []));
   let _isUsed = Symbol('_isUsed');
   let _GeneratedStreamImpl$ = dart.generic(function(T) {
     class _GeneratedStreamImpl extends _StreamImpl$(T) {
       _GeneratedStreamImpl(pending) {
         this[_pending] = pending;
         this[_isUsed] = false;
-        super._StreamImpl();
       }
       [_createSubscription](onData, onError, onDone, cancelOnError) {
         if (this[_isUsed])
           throw new core.StateError("Stream has already been listened to.");
         this[_isUsed] = true;
         let _ = new _BufferingStreamSubscription(onData, onError, onDone, cancelOnError);
         _[_setPendingEvents](this[_pending]());
         return _;
       }
     }
@@ skipping 2053 matching lines @@
   exports.ScheduleMicrotaskHandler = ScheduleMicrotaskHandler;
   exports.CreateTimerHandler = CreateTimerHandler;
   exports.CreatePeriodicTimerHandler = CreatePeriodicTimerHandler;
   exports.PrintHandler = PrintHandler;
   exports.ForkHandler = ForkHandler;
   exports.ZoneSpecification = ZoneSpecification;
   exports.ZoneDelegate = ZoneDelegate;
   exports.Zone = Zone;
   exports.runZoned = runZoned;
 })(async || (async = {}));