|  | // Copyright (c) 2012, 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. | 
|  |  | 
|  | // 'X' is defined as an abstract class in lib1 and a class implementing that | 
|  | // abstract class in lib2.  Use of import prefixes should allow this. | 
|  |  | 
|  | library main; | 
|  |  | 
|  | import "package:expect/expect.dart"; | 
|  | import "library_same_name_used_lib1.dart"; | 
|  |  | 
|  | main() { | 
|  | var x = makeX(); | 
|  | Expect.equals('lib2.X', '$x'); | 
|  | } |