test rename overhaul: step 8 - language tests

tests/language/interface_factory_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 that the two major variations of interface factories work.
 
 // Variant 1.  The factory class implements the interface and provides
 // a default implementation of the interface.
 
 interface Interface1 default DefaultImplementation {
@@ skipping 49 matching lines @@
   static testMain() {
     Expect.equals("cobracobra", new Interface2("cobra").GetSecret());
     Expect.equals("NamedConstructor", new Interface2.named().GetSecret());
   }
 }
 
 main() {
   DefaultImplementation.testMain();
   FactoryProvider.testMain();
 }