Format all tests.

tests/language/export_cyclic_test.dart

 // 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.
 
 // Test cyclic export and re-export.
 
 /**
  * export_cyclic_test re-exports export_cyclic_helper1 which declares B
  * export_cyclic_helper1 re-exports export_cyclic_helper2 which declares C
  * export_cyclic_helper2 re-exports export_cyclic_test which declares A
  * export_cyclic_helper2 re-exports export_cyclic_helper3 which declares D
  */
 
 library export_cyclic_test;
 
 import 'export_cyclic_helper1.dart';
 export 'export_cyclic_helper1.dart';
 
 class A {}
 
 void main() {
   print(new A());
   print(new B());
   print(new C());
   print(new D());
 }
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