New analyzer snapshot.

pkg/analyzer/lib/src/generated/utilities_general.dart

 // Copyright (c) 2014, 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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.utilities.general;
 
 /**
  * Helper for measuring how much time is spent doing some operation.
  */
 class TimeCounter {
+  static final int NANOS_PER_MILLI = 1000 * 1000;
+  static final int NANOS_PER_MICRO = 1000;
   static TimeCounter _current = null;
   final Stopwatch _sw = new Stopwatch();
 
   /**
    * @return the number of milliseconds spent between [start] and [stop].
    */
   int get result => _sw.elapsedMilliseconds;
 
   /**
    * Starts counting time.
    *
    * @return the [TimeCounterHandle] that should be used to stop counting.
    */
   TimeCounter_TimeCounterHandle start() {
     return new TimeCounter_TimeCounterHandle(this);
   }
 }
 
 /**
  * The handle object that should be used to stop and update counter.
  */
 class TimeCounter_TimeCounterHandle {
   final TimeCounter _counter;
+  int _startMicros;
   TimeCounter _prev;
 
   TimeCounter_TimeCounterHandle(this._counter) {
     // if there is some counter running, pause it
     _prev = TimeCounter._current;
     if (_prev != null) {
       _prev._sw.stop();
     }
     TimeCounter._current = _counter;
     // start this counter
+    _startMicros = _counter._sw.elapsedMicroseconds;
     _counter._sw.start();
   }
 
   /**
    * Stops counting time and updates counter.
    */
-  void stop() {
+  int stop() {
     _counter._sw.stop();
+    int elapsed = (_counter._sw.elapsedMicroseconds - _startMicros) *
+        TimeCounter.NANOS_PER_MICRO;
     // restore previous counter and resume it
     TimeCounter._current = _prev;
     if (_prev != null) {
       _prev._sw.start();
     }
+    // done
+    return elapsed;
   }
-}
+}