| // 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. | 
 | // | 
 | // Unresolved symbols should be reported as static type warnings. | 
 | // This should not prevent execution. | 
 |  | 
 | library Prefix21NegativeTest.dart; | 
 | import "library12.dart" as lib12; | 
 |  | 
 | class myClass { | 
 |   myClass(lib12.Library13 p) {  /// static type warning | 
 |   } | 
 | } | 
 |  | 
 | main() { | 
 |   new myClass(null);  // no dynamic type error when assigning null | 
 | } |