Revert "Parts must start with 'part of'" and "Attempt to fix VM build"

dart/compiler/javatests/com/google/dart/compiler/end2end/inc/myother6.change.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.
-part of myApp;
 
 class Other6 {
   Other6() { }
   method() { }
   void newMethod() { }
 }
 
 class Unused {
   static void unused() { }
 }