simplify function coercions -- DDC can generate function types in place

lib/runtime/dart/async.js

 dart_library.library('dart/async', null, /* Imports */[
   'dart/_runtime',
   'dart/core',
   'dart/_internal',
   'dart/collection'
 ], /* Lazy imports */[
   'dart/_isolate_helper'
 ], function(exports, dart, core, _internal, collection, _isolate_helper) {
   'use strict';
   let dartx = dart.dartx;
   function _invokeErrorHandler(errorHandler, error, stackTrace) {
     if (dart.is(errorHandler, ZoneBinaryCallback)) {
       return dart.dcall(errorHandler, error, stackTrace);
     } else {
       return dart.dcall(errorHandler, error);
     }
   }
   dart.fn(_invokeErrorHandler, dart.dynamic, [core.Function, core.Object, core.StackTrace]);
   function _registerErrorHandler(errorHandler, zone) {
     if (dart.is(errorHandler, ZoneBinaryCallback)) {
       return zone.registerBinaryCallback(errorHandler);
     } else {
-      return zone.registerUnaryCallback(dart.as(errorHandler, __CastType0));
+      return zone.registerUnaryCallback(dart.as(errorHandler, dart.functionType(dart.dynamic, [dart.dynamic])));
     }
   }
   dart.fn(_registerErrorHandler, () => dart.definiteFunctionType(core.Function, [core.Function, Zone]));
   class AsyncError extends core.Object {
     AsyncError(error, stackTrace) {
       this.error = error;
       this.stackTrace = stackTrace;
     }
     toString() {
       return dart.toString(this.error);
@@ skipping 20 matching lines @@
         result = result + `\nStack Trace:\n${this.stackTrace}`;
       }
       return result;
     }
   }
   dart.setSignature(_UncaughtAsyncError, {
     constructors: () => ({_UncaughtAsyncError: [_UncaughtAsyncError, [dart.dynamic, core.StackTrace]]}),
     statics: () => ({_getBestStackTrace: [core.StackTrace, [dart.dynamic, core.StackTrace]]}),
     names: ['_getBestStackTrace']
   });
-  const __CastType0 = dart.typedef('__CastType0', () => dart.functionType(dart.dynamic, [dart.dynamic]));
   const _controller = Symbol('_controller');
   const _subscribe = Symbol('_subscribe');
   const _createSubscription = Symbol('_createSubscription');
   const _onListen = Symbol('_onListen');
   const _add = Symbol('_add');
   const _closeUnchecked = Symbol('_closeUnchecked');
   const _addError = Symbol('_addError');
   const _completeError = Symbol('_completeError');
   const _complete = Symbol('_complete');
   const _sink = Symbol('_sink');
@@ skipping 62 matching lines @@
         return new (_BoundSinkStream$(dart.dynamic, T))(source, mapSink);
       }
       get isBroadcast() {
         return false;
       }
       asBroadcastStream(opts) {
         let onListen = opts && 'onListen' in opts ? opts.onListen : null;
         dart.as(onListen, dart.functionType(dart.void, [StreamSubscription$(T)]));
         let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
         dart.as(onCancel, dart.functionType(dart.void, [StreamSubscription$(T)]));
-        return new (_AsBroadcastStream$(T))(this, dart.as(onListen, __CastType10), dart.as(onCancel, dart.functionType(dart.void, [StreamSubscription])));
+        return new (_AsBroadcastStream$(T))(this, dart.as(onListen, dart.functionType(dart.void, [StreamSubscription])), dart.as(onCancel, dart.functionType(dart.void, [StreamSubscription])));
       }
       where(test) {
         dart.as(test, dart.functionType(core.bool, [T]));
         return new (_WhereStream$(T))(this, test);
       }
       map(convert) {
         dart.as(convert, dart.functionType(dart.dynamic, [T]));
         return new (_MapStream$(T, dart.dynamic))(this, convert);
       }
       asyncMap(convert) {
@@ skipping 102 matching lines @@
         let result = new (_Future$(T))();
         let seenFirst = false;
         let value = null;
         let subscription = null;
         subscription = this.listen(dart.fn(element => {
           dart.as(element, T);
           if (seenFirst) {
             _runUserCode(dart.fn(() => combine(value, element), T, []), dart.fn(newValue => {
               dart.as(newValue, T);
               value = newValue;
-            }, dart.dynamic, [T]), dart.as(_cancelAndErrorClosure(subscription, result), __CastType12));
+            }, dart.dynamic, [T]), dart.as(_cancelAndErrorClosure(subscription, result), dart.functionType(dart.dynamic, [dart.dynamic, core.StackTrace])));
           } else {
             value = element;
             seenFirst = true;
           }
         }, dart.void, [T]), {onError: dart.bind(result, _completeError), onDone: dart.fn(() => {
             if (!seenFirst) {
               try {
                 dart.throw(_internal.IterableElementError.noElement());
               } catch (e) {
                 let s = dart.stackTrace(e);
@@ skipping 375 matching lines @@
         dart.as(onTimeout, dart.functionType(dart.void, [EventSink]));
         let controller = null;
         let subscription = null;
         let timer = null;
         let zone = null;
         let timeout2 = null;
         function onData(event) {
           dart.as(event, T);
           timer.cancel();
           controller.add(event);
-          timer = zone.createTimer(timeLimit, dart.as(timeout2, __CastType15));
+          timer = zone.createTimer(timeLimit, dart.as(timeout2, dart.functionType(dart.void, [])));
         }
         dart.fn(onData, dart.void, [T]);
         function onError(error, stackTrace) {
           timer.cancel();
           dart.assert(dart.is(controller, _StreamController) || dart.is(controller, _BroadcastStreamController));
           let eventSink = dart.as(controller, _EventSink$(T));
           eventSink[_addError](error, stackTrace);
           timer = zone.createTimer(timeLimit, dart.as(timeout2, dart.functionType(dart.void, [])));
         }
         dart.fn(onError, dart.void, [dart.dynamic, core.StackTrace]);
         function onDone() {
           timer.cancel();
           controller.close();
         }
         dart.fn(onDone, dart.void, []);
         const onListen = (function() {
           zone = Zone.current;
           if (onTimeout == null) {
             timeout2 = dart.fn(() => {
               controller.addError(new TimeoutException("No stream event", timeLimit), null);
             });
           } else {
-            onTimeout = dart.as(zone.registerUnaryCallback(onTimeout), __CastType16);
+            onTimeout = dart.as(zone.registerUnaryCallback(onTimeout), dart.functionType(dart.void, [EventSink]));
             let wrapper = new _ControllerEventSinkWrapper(null);
             timeout2 = dart.fn(() => {
               wrapper[_sink] = controller;
               zone.runUnaryGuarded(onTimeout, wrapper);
               wrapper[_sink] = null;
             });
           }
           subscription = this.listen(onData, {onError: onError, onDone: onDone});
           timer = zone.createTimer(timeLimit, dart.as(timeout2, dart.functionType(dart.void, [])));
         }).bind(this);
@@ skipping 381 matching lines @@
       }
       [_sendError](error, stackTrace) {
         dart.assert(!dart.notNull(this[_isCanceled]));
         dart.assert(!dart.notNull(this[_isPaused]));
         dart.assert(!dart.notNull(this[_inCallback]));
         let wasInputPaused = this[_isInputPaused];
         const sendError = (function() {
           if (dart.notNull(this[_isCanceled]) && !dart.notNull(this[_waitsForCancel])) return;
           this[_state] = dart.notNull(this[_state]) | dart.notNull(_BufferingStreamSubscription$()._STATE_IN_CALLBACK);
           if (dart.is(this[_onError], ZoneBinaryCallback)) {
-            this[_zone].runBinaryGuarded(dart.as(this[_onError], __CastType18), error, stackTrace);
+            this[_zone].runBinaryGuarded(dart.as(this[_onError], dart.functionType(dart.dynamic, [dart.dynamic, dart.dynamic])), error, stackTrace);
           } else {
-            this[_zone].runUnaryGuarded(dart.as(this[_onError], __CastType21), error);
+            this[_zone].runUnaryGuarded(dart.as(this[_onError], dart.functionType(dart.dynamic, [dart.dynamic])), error);
           }
           this[_state] = dart.notNull(this[_state]) & ~dart.notNull(_BufferingStreamSubscription$()._STATE_IN_CALLBACK);
         }).bind(this);
         dart.fn(sendError, dart.void, []);
         if (dart.notNull(this[_cancelOnError])) {
           this[_state] = dart.notNull(this[_state]) | dart.notNull(_BufferingStreamSubscription$()._STATE_WAIT_FOR_CANCEL);
           this[_cancel]();
           if (dart.is(this[_cancelFuture], Future)) {
             this[_cancelFuture].whenComplete(sendError);
           } else {
@@ skipping 789 matching lines @@
         return Future$().doWhile(dart.fn(() => {
           if (!dart.notNull(iterator.moveNext())) return false;
           return Future$().sync(dart.fn(() => dart.dcall(f, iterator.current))).then(dart.fn(_ => true, core.bool, [dart.dynamic]));
         }, core.Object, []));
       }
       static doWhile(f) {
         let doneSignal = new _Future();
         let nextIteration = null;
         nextIteration = Zone.current.bindUnaryCallback(dart.fn(keepGoing => {
           if (dart.notNull(keepGoing)) {
-            Future$().sync(f).then(dart.as(nextIteration, __CastType2), {onError: dart.bind(doneSignal, _completeError)});
+            Future$().sync(f).then(dart.as(nextIteration, dart.functionType(dart.dynamic, [dart.dynamic])), {onError: dart.bind(doneSignal, _completeError)});
           } else {
             doneSignal[_complete](null);
           }
         }, dart.dynamic, [core.bool]), {runGuarded: true});
         dart.dcall(nextIteration, true);
         return doneSignal;
       }
     }
     dart.setSignature(Future, {
       constructors: () => ({
@@ skipping 60 matching lines @@
       error = _nonNullError(replacement.error);
       stackTrace = replacement.stackTrace;
     }
     result[_completeError](error, dart.as(stackTrace, core.StackTrace));
   }
   dart.fn(_completeWithErrorCallback, () => dart.definiteFunctionType(dart.void, [_Future, dart.dynamic, dart.dynamic]));
   function _nonNullError(error) {
     return error != null ? error : new core.NullThrownError();
   }
   dart.fn(_nonNullError, core.Object, [core.Object]);
-  const __CastType2 = dart.typedef('__CastType2', () => dart.functionType(dart.dynamic, [dart.dynamic]));
   const _FutureOnValue$ = dart.generic(function(T) {
     const _FutureOnValue = dart.typedef('_FutureOnValue', () => dart.functionType(dart.dynamic, [T]));
     return _FutureOnValue;
   });
   let _FutureOnValue = _FutureOnValue$();
   const _FutureErrorTest = dart.typedef('_FutureErrorTest', () => dart.functionType(core.bool, [dart.dynamic]));
   const _FutureAction = dart.typedef('_FutureAction', () => dart.functionType(dart.dynamic, []));
   const _Completer$ = dart.generic(function(T) {
     class _Completer extends core.Object {
       _Completer() {
@@ skipping 220 matching lines @@
         } else {
           dart.assert(this[_isChained]);
           this[_state] = _Future$()._INCOMPLETE;
         }
       }
       then(f, opts) {
         dart.as(f, dart.functionType(dart.dynamic, [T]));
         let onError = opts && 'onError' in opts ? opts.onError : null;
         let result = new (_Future$())();
         if (!core.identical(result[_zone], _ROOT_ZONE)) {
-          f = dart.as(result[_zone].registerUnaryCallback(f), __CastType4);
+          f = dart.as(result[_zone].registerUnaryCallback(f), dart.functionType(dart.dynamic, [T]));
           if (onError != null) {
             onError = _registerErrorHandler(onError, result[_zone]);
           }
         }
         this[_addListener](new _FutureListener.then(result, f, onError));
         return result;
       }
       catchError(onError, opts) {
         let test = opts && 'test' in opts ? opts.test : null;
         dart.as(test, dart.functionType(core.bool, [dart.dynamic]));
         let result = new (_Future$())();
         if (!core.identical(result[_zone], _ROOT_ZONE)) {
           onError = _registerErrorHandler(onError, result[_zone]);
-          if (test != null) test = dart.as(result[_zone].registerUnaryCallback(test), __CastType6);
+          if (test != null) test = dart.as(result[_zone].registerUnaryCallback(test), dart.functionType(core.bool, [dart.dynamic]));
         }
         this[_addListener](new _FutureListener.catchError(result, onError, test));
         return result;
       }
       whenComplete(action) {
         dart.as(action, dart.functionType(dart.dynamic, []));
         let result = new (_Future$(T))();
         if (!core.identical(result[_zone], _ROOT_ZONE)) {
           action = result[_zone].registerCallback(action);
         }
@@ skipping 198 matching lines @@
                   return;
                 }
 
               }
               let errorCallback = listener[_onError];
               if (dart.notNull(matchesTest) && errorCallback != null) {
                 try {
                   if (dart.is(errorCallback, ZoneBinaryCallback)) {
                     listenerValueOrError = zone.runBinary(errorCallback, asyncError.error, asyncError.stackTrace);
                   } else {
-                    listenerValueOrError = zone.runUnary(dart.as(errorCallback, __CastType8), asyncError.error);
+                    listenerValueOrError = zone.runUnary(dart.as(errorCallback, dart.functionType(dart.dynamic, [dart.dynamic])), asyncError.error);
                   }
                 } catch (e) {
                   let s = dart.stackTrace(e);
                   listenerValueOrError = core.identical(asyncError.error, e) ? asyncError : new AsyncError(e, s);
                   listenerHasValue = false;
                   return;
                 }
 
                 listenerHasValue = true;
               } else {
@@ skipping 148 matching lines @@
       names: ['_chainForeignFuture', '_chainCoreFuture', '_propagateToListeners']
     });
     _Future._INCOMPLETE = 0;
     _Future._PENDING_COMPLETE = 1;
     _Future._CHAINED = 2;
     _Future._VALUE = 4;
     _Future._ERROR = 8;
     return _Future;
   });
   let _Future = _Future$();
-  const __CastType4$ = dart.generic(function(T, S) {
-    const __CastType4 = dart.typedef('__CastType4', () => dart.functionType(S, [T]));
-    return __CastType4;
-  });
-  let __CastType4 = __CastType4$();
-  const __CastType6 = dart.typedef('__CastType6', () => dart.functionType(core.bool, [dart.dynamic]));
-  const __CastType8 = dart.typedef('__CastType8', () => dart.functionType(dart.dynamic, [dart.dynamic]));
   const _AsyncCallback = dart.typedef('_AsyncCallback', () => dart.functionType(dart.void, []));
   class _AsyncCallbackEntry extends core.Object {
     _AsyncCallbackEntry(callback) {
       this.callback = callback;
       this.next = null;
     }
   }
   dart.setSignature(_AsyncCallbackEntry, {
     constructors: () => ({_AsyncCallbackEntry: [_AsyncCallbackEntry, [_AsyncCallback]]})
   });
@@ skipping 243 matching lines @@
       constructors: () => ({_ControllerEventSinkWrapper: [_ControllerEventSinkWrapper$(T), [EventSink]]}),
       methods: () => ({
         add: [dart.void, [T]],
         addError: [dart.void, [dart.dynamic], [core.StackTrace]],
         close: [dart.void, []]
       })
     });
     return _ControllerEventSinkWrapper;
   });
   let _ControllerEventSinkWrapper = _ControllerEventSinkWrapper$();
-  const __CastType10 = dart.typedef('__CastType10', () => dart.functionType(dart.void, [StreamSubscription]));
-  const __CastType12 = dart.typedef('__CastType12', () => dart.functionType(dart.dynamic, [dart.dynamic, core.StackTrace]));
-  const __CastType15 = dart.typedef('__CastType15', () => dart.functionType(dart.void, []));
-  const __CastType16 = dart.typedef('__CastType16', () => dart.functionType(dart.void, [EventSink]));
   const StreamController$ = dart.generic(function(T) {
     class StreamController extends core.Object {
       static new(opts) {
         let onListen = opts && 'onListen' in opts ? opts.onListen : null;
         let onPause = opts && 'onPause' in opts ? opts.onPause : null;
         let onResume = opts && 'onResume' in opts ? opts.onResume : null;
         let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
         let sync = opts && 'sync' in opts ? opts.sync : false;
         if (onListen == null && onPause == null && onResume == null && onCancel == null) {
           return dart.notNull(sync) ? new (_NoCallbackSyncStreamController$(T))() : new (_NoCallbackAsyncStreamController$(T))();
@@ skipping 1127 matching lines @@
     });
     _StreamIteratorImpl._STATE_FOUND = 0;
     _StreamIteratorImpl._STATE_DONE = 1;
     _StreamIteratorImpl._STATE_MOVING = 2;
     _StreamIteratorImpl._STATE_EXTRA_DATA = 3;
     _StreamIteratorImpl._STATE_EXTRA_ERROR = 4;
     _StreamIteratorImpl._STATE_EXTRA_DONE = 5;
     return _StreamIteratorImpl;
   });
   let _StreamIteratorImpl = _StreamIteratorImpl$();
-  const __CastType18 = dart.typedef('__CastType18', () => dart.functionType(dart.dynamic, [dart.dynamic, dart.dynamic]));
-  const __CastType21 = dart.typedef('__CastType21', () => dart.functionType(dart.dynamic, [dart.dynamic]));
   function _runUserCode(userCode, onSuccess, onError) {
     try {
       dart.dcall(onSuccess, userCode());
     } catch (e) {
       let s = dart.stackTrace(e);
       let replacement = Zone.current.errorCallback(e, s);
       if (replacement == null) {
         dart.dcall(onError, e, s);
       } else {
         let error = _nonNullError(replacement.error);
@@ skipping 793 matching lines @@
     static new(duration, callback) {
       if (dart.equals(Zone.current, Zone.ROOT)) {
         return Zone.current.createTimer(duration, callback);
       }
       return Zone.current.createTimer(duration, Zone.current.bindCallback(callback, {runGuarded: true}));
     }
     static periodic(duration, callback) {
       if (dart.equals(Zone.current, Zone.ROOT)) {
         return Zone.current.createPeriodicTimer(duration, callback);
       }
-      return Zone.current.createPeriodicTimer(duration, dart.as(Zone.current.bindUnaryCallback(callback, {runGuarded: true}), __CastType23));
+      return Zone.current.createPeriodicTimer(duration, dart.as(Zone.current.bindUnaryCallback(callback, {runGuarded: true}), dart.functionType(dart.void, [Timer])));
     }
     static run(callback) {
       Timer.new(core.Duration.ZERO, callback);
     }
     static _createTimer(duration, callback) {
       let milliseconds = duration.inMilliseconds;
       if (dart.notNull(milliseconds) < 0) milliseconds = 0;
       return new _isolate_helper.TimerImpl(milliseconds, callback);
     }
     static _createPeriodicTimer(duration, callback) {
       let milliseconds = duration.inMilliseconds;
       if (dart.notNull(milliseconds) < 0) milliseconds = 0;
       return new _isolate_helper.TimerImpl.periodic(milliseconds, callback);
     }
   }
   dart.setSignature(Timer, {
     constructors: () => ({
       new: [Timer, [core.Duration, dart.functionType(dart.void, [])]],
       periodic: [Timer, [core.Duration, dart.functionType(dart.void, [Timer])]]
     }),
     statics: () => ({
       run: [dart.void, [dart.functionType(dart.void, [])]],
       _createTimer: [Timer, [core.Duration, dart.functionType(dart.void, [])]],
       _createPeriodicTimer: [Timer, [core.Duration, dart.functionType(dart.void, [Timer])]]
     }),
     names: ['run', '_createTimer', '_createPeriodicTimer']
   });
-  const __CastType23 = dart.typedef('__CastType23', () => dart.functionType(dart.void, [Timer]));
   const ZoneCallback = dart.typedef('ZoneCallback', () => dart.functionType(dart.dynamic, []));
   const ZoneUnaryCallback = dart.typedef('ZoneUnaryCallback', () => dart.functionType(dart.dynamic, [dart.dynamic]));
   const ZoneBinaryCallback = dart.typedef('ZoneBinaryCallback', () => dart.functionType(dart.dynamic, [dart.dynamic, dart.dynamic]));
   const HandleUncaughtErrorHandler = dart.typedef('HandleUncaughtErrorHandler', () => dart.functionType(dart.dynamic, [Zone, ZoneDelegate, Zone, dart.dynamic, core.StackTrace]));
   const RunHandler = dart.typedef('RunHandler', () => dart.functionType(dart.dynamic, [Zone, ZoneDelegate, Zone, dart.functionType(dart.dynamic, [])]));
   const RunUnaryHandler = dart.typedef('RunUnaryHandler', () => dart.functionType(dart.dynamic, [Zone, ZoneDelegate, Zone, dart.functionType(dart.dynamic, [dart.dynamic]), dart.dynamic]));
   const RunBinaryHandler = dart.typedef('RunBinaryHandler', () => dart.functionType(dart.dynamic, [Zone, ZoneDelegate, Zone, dart.functionType(dart.dynamic, [dart.dynamic, dart.dynamic]), dart.dynamic, dart.dynamic]));
   const RegisterCallbackHandler = dart.typedef('RegisterCallbackHandler', () => dart.functionType(ZoneCallback, [Zone, ZoneDelegate, Zone, dart.functionType(dart.dynamic, [])]));
   const RegisterUnaryCallbackHandler = dart.typedef('RegisterUnaryCallbackHandler', () => dart.functionType(ZoneUnaryCallback, [Zone, ZoneDelegate, Zone, dart.functionType(dart.dynamic, [dart.dynamic])]));
   const RegisterBinaryCallbackHandler = dart.typedef('RegisterBinaryCallbackHandler', () => dart.functionType(ZoneBinaryCallback, [Zone, ZoneDelegate, Zone, dart.functionType(dart.dynamic, [dart.dynamic, dart.dynamic])]));
@@ skipping 512 matching lines @@
   dart.fn(_rootScheduleMicrotask, dart.void, [Zone, ZoneDelegate, Zone, dart.functionType(dart.dynamic, [])]);
   function _rootCreateTimer(self, parent, zone, duration, callback) {
     if (!core.identical(_ROOT_ZONE, zone)) {
       callback = zone.bindCallback(callback);
     }
     return Timer._createTimer(duration, callback);
   }
   dart.fn(_rootCreateTimer, Timer, [Zone, ZoneDelegate, Zone, core.Duration, dart.functionType(dart.void, [])]);
   function _rootCreatePeriodicTimer(self, parent, zone, duration, callback) {
     if (!core.identical(_ROOT_ZONE, zone)) {
-      callback = dart.as(zone.bindUnaryCallback(callback), __CastType25);
+      callback = dart.as(zone.bindUnaryCallback(callback), dart.functionType(dart.void, [Timer]));
     }
     return Timer._createPeriodicTimer(duration, callback);
   }
   dart.fn(_rootCreatePeriodicTimer, Timer, [Zone, ZoneDelegate, Zone, core.Duration, dart.functionType(dart.void, [Timer])]);
   function _rootPrint(self, parent, zone, line) {
     _internal.printToConsole(line);
   }
   dart.fn(_rootPrint, dart.void, [Zone, ZoneDelegate, Zone, core.String]);
   function _printToZone(line) {
     Zone.current.print(line);
@@ skipping 262 matching lines @@
     let zoneValues = opts && 'zoneValues' in opts ? opts.zoneValues : null;
     let zoneSpecification = opts && 'zoneSpecification' in opts ? opts.zoneSpecification : null;
     let onError = opts && 'onError' in opts ? opts.onError : null;
     let errorHandler = null;
     if (onError != null) {
       errorHandler = dart.fn((self, parent, zone, error, stackTrace) => {
         try {
           if (dart.is(onError, ZoneBinaryCallback)) {
             return self.parent.runBinary(onError, error, stackTrace);
           }
-          return self.parent.runUnary(dart.as(onError, __CastType27), error);
+          return self.parent.runUnary(dart.as(onError, dart.functionType(dart.dynamic, [dart.dynamic])), error);
         } catch (e) {
           let s = dart.stackTrace(e);
           if (core.identical(e, error)) {
             return parent.handleUncaughtError(zone, error, stackTrace);
           } else {
             return parent.handleUncaughtError(zone, e, s);
           }
         }
 
       }, dart.dynamic, [Zone, ZoneDelegate, Zone, dart.dynamic, core.StackTrace]);
     }
     if (zoneSpecification == null) {
       zoneSpecification = ZoneSpecification.new({handleUncaughtError: errorHandler});
     } else if (errorHandler != null) {
       zoneSpecification = ZoneSpecification.from(zoneSpecification, {handleUncaughtError: errorHandler});
     }
     let zone = Zone.current.fork({specification: zoneSpecification, zoneValues: zoneValues});
     if (onError != null) {
       return zone.runGuarded(body);
     } else {
       return zone.run(body);
     }
   }
   dart.fn(runZoned, dart.dynamic, [dart.functionType(dart.dynamic, [])], {zoneValues: core.Map, zoneSpecification: ZoneSpecification, onError: core.Function});
-  const __CastType25 = dart.typedef('__CastType25', () => dart.functionType(dart.void, [Timer]));
-  const __CastType27 = dart.typedef('__CastType27', () => dart.functionType(dart.dynamic, [dart.dynamic]));
   dart.copyProperties(exports, {
     get _hasDocument() {
       return typeof document == 'object';
     }
   });
   // Exports:
   exports.AsyncError = AsyncError;
   exports.Stream$ = Stream$;
   exports.Stream = Stream;
   exports.DeferredLibrary = DeferredLibrary;
@@ skipping 35 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;
 });