Move spaces from before comments to within comments

tests/language/await_for_test.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.
 
 import "dart:async";
 import "package:expect/expect.dart";
 import "package:async_helper/async_helper.dart";
 
 class Trace {
   String trace;
@@ skipping 130 matching lines @@
 Stream timedCounter(int maxCount) {
   StreamController controller;
   Timer timer;
   int counter = 0;
 
   void tick(_) {
     counter++;
     controller.add(counter); // Ask stream to send counter values as event.
     if (counter >= maxCount) {
       timer.cancel();
-      controller.close();    // Ask stream to shut down and tell listeners.
+      controller.close(); //    Ask stream to shut down and tell listeners.
     }
   }
 
   void startTimer() {
     timer = new Timer.periodic(const Duration(milliseconds: 10), tick);
   }
 
   void stopTimer() {
     if (timer != null) {
       timer.cancel();
@@ skipping 33 matching lines @@
   }
 
   controller = new StreamController(
       onListen: startTimer,
       onPause: stopTimer,
       onResume: startTimer,
       onCancel: stopTimer);
 
   return controller.stream;
 }