Add test where X is defined differentlty in co-importing libraries

tests/stub-generator/src/MintMakerFullyIsolatedTest-generatedTest.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.
 
 // IsolateStubs=MintMakerFullyIsolatedTest.dart:Mint,Purse,PowerfulPurse
 
-#library("MintMakerFullyIsolatedTest-generatedTest");
 #import("../../isolate/src/TestFramework.dart");
 
 /* class = Purse (tests/stub-generator/src/MintMakerFullyIsolatedTest.dart/MintMakerFullyIsolatedTest.dart: 9) */
 
 interface Purse$Proxy extends Proxy {
   Promise<int> queryBalance();
 
   Purse$Proxy sproutPurse();
 
   Promise<int> deposit(int amount, Purse$Proxy source);
@@ skipping 482 matching lines @@
       expect.succeeded();
       print("##DONE##");
     });
   }
 
 }
 
 main() {
   runTests([MintMakerFullyIsolatedTest.testMain]);
 }