package:observe fix various api issues

pkg/observe/lib/src/dirty_check.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.
 
 /**
  * *Warning*: this library is **internal**, and APIs are subject to change.
  *
  * Tracks observable objects for dirty checking and testing purposes.
  *
  * It can collect all observed objects, which can be used to trigger predictable
@@ skipping 17 matching lines @@
 void registerObservable(Observable obj) {
   if (_allObservables == null) _allObservables = <Observable>[];
   _allObservables.add(obj);
   _allObservablesCount++;
 }
 
 /**
  * Synchronously deliver all change records for known observables.
  *
  * This will execute [Observable.deliverChanges] on objects that inherit from
- * [ObservableMixin].
+ * [Observable].
  */
 // Note: this is called performMicrotaskCheckpoint in change_summary.js.
 void dirtyCheckObservables() {
   if (_delivering) return;
   if (_allObservables == null) return;
 
   _delivering = true;
 
   int cycles = 0;
   bool anyChanged = false;
@@ skipping 34 matching lines @@
 }
 
 const MAX_DIRTY_CHECK_CYCLES = 1000;
 
 
 /**
  * Log for messages produced at runtime by this library. Logging can be
  * configured by accessing Logger.root from the logging library.
  */
 final Logger _logger = new Logger('Observable.dirtyCheck');