Move spaces from before comments to within comments

tests/language_strong/super_operator_test.dart

 // Copyright (c) 2011, 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.
 // Dart test for testing super operator calls
 
 import "package:expect/expect.dart";
 
 
 class A {
   String val = "";
@@ skipping 50 matching lines @@
 }
 
 
 main () {
   var a = new A();
   a = a + "William";  // operator + of class A.
   Expect.equals("William", a.val);
   Expect.equals("r", a[2]);  // operator [] of class A.
 
   a = new B();
-  a += "Tell";   // operator + of class B.
+  a += "Tell"; //   operator + of class B.
   Expect.equals("TellTell", a.val);
   Expect.equals("rr", a[2]);  // operator [] of class B.
 
   a[4] = 1;  // operator []= of class B.
   Expect.equals(43, a.things[4]);
   Expect.equals(86, a[4]);
 
   Expect.throws(testRegression6403);
 }