Rename runAsync to scheduleMicrotask.

pkg/observe/test/observe_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:async';
 import 'package:logging/logging.dart';
 import 'package:observe/observe.dart';
 import 'package:observe/src/dirty_check.dart' as dirty_check;
 import 'package:unittest/unittest.dart';
 import 'observe_test_utils.dart';
@@ skipping 55 matching lines @@
   final watch = createModel(null) is! ChangeNotifierMixin;
 
   // Track the subscriptions so we can clean them up in tearDown.
   List subs;
 
   int initialObservers;
   setUp(() {
     initialObservers = dirty_check.allObservablesCount;
     subs = [];
 
-    if (watch) runAsync(Observable.dirtyCheck);
+    if (watch) scheduleMicrotask(Observable.dirtyCheck);
   });
 
   tearDown(() {
     for (var sub in subs) sub.cancel();
     performMicrotaskCheckpoint();
 
     expect(dirty_check.allObservablesCount, initialObservers,
         reason: 'Observable object leaked');
   });
 
@@ skipping 85 matching lines @@
     expectChanges(records, _changedValue(1));
   });
 
   observeTest('cancel listening', () {
     var t = createModel(123);
     var sub;
     sub = t.changes.listen(expectAsync1((records) {
       expectChanges(records, _changedValue(1));
       sub.cancel();
       t.value = 777;
-      runAsync(Observable.dirtyCheck);
+      scheduleMicrotask(Observable.dirtyCheck);
     }));
     t.value = 42;
   });
 
   observeTest('cancel and reobserve', () {
     var t = createModel(123);
     var sub;
     sub = t.changes.listen(expectAsync1((records) {
       expectChanges(records, _changedValue(1));
       sub.cancel();
 
-      runAsync(expectAsync0(() {
+      scheduleMicrotask(expectAsync0(() {
         subs.add(t.changes.listen(expectAsync1((records) {
           expectChanges(records, _changedValue(1));
         })));
         t.value = 777;
-        runAsync(Observable.dirtyCheck);
+        scheduleMicrotask(Observable.dirtyCheck);
       }));
     }));
     t.value = 42;
   });
 
   observeTest('cannot modify changes list', () {
     var t = createModel(123);
     var records = null;
     subs.add(t.changes.listen((r) { records = r; }));
     t.value = 42;
@@ skipping 43 matching lines @@
   @observable T value;
 
   WatcherModel([T initialValue]) : value = initialValue;
 
   String toString() => '#<$runtimeType value: $value>';
 }
 
 class ModelSubclass<T> extends WatcherModel<T> {
   ModelSubclass([T initialValue]) : super(initialValue);
 }