| // 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. | 
 |  | 
 | // Unresolved symbols should be reported as an error. | 
 | import "../library12.dart" as lib12; | 
 |  | 
 | class Subclass extends lib12.Library13 {} | 
 | //                     ^^^^^^^^^^^^^^^ | 
 | // [analyzer] COMPILE_TIME_ERROR.EXTENDS_NON_CLASS | 
 | // [cfe] Type 'lib12.Library13' not found. | 
 |  | 
 | class Implementer implements lib12.Library13 {} | 
 | //                           ^^^^^^^^^^^^^^^ | 
 | // [analyzer] COMPILE_TIME_ERROR.IMPLEMENTS_NON_CLASS | 
 | // [cfe] Type 'lib12.Library13' not found. | 
 |  | 
 | main() { | 
 |   new Subclass(); | 
 |   new Implementer(); | 
 | } |