Update or delete language tests using obsolete interfaces or default factory

tests/language/default_factory_test.dart

Index: tests/language/default_factory_test.dart
===================================================================
--- tests/language/default_factory_test.dart	(revision 15648)
+++ tests/language/default_factory_test.dart	(working copy)
@@ -1,39 +1,33 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// 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.
 
 // Dart test program for testing default factories.
 
-interface Vehicle default GoogleOne {
-  Vehicle();
+abstract class Vehicle {
+  factory Vehicle() = GoogleOne.Vehicle;
 }
 
 
-class Bike implements Vehicle {
+class Bike implements Vehicle, GoogleOne {
   Bike.redOne() {}
 }
 
 
-interface SpaceShip default GoogleOne {
-  SpaceShip();
+abstract class SpaceShip {
+  factory SpaceShip() = GoogleOne;
 }
 
 
 class GoogleOne implements SpaceShip {
   GoogleOne.internal_() {}
   factory GoogleOne() { return new GoogleOne.internal_(); }
-  factory Vehicle() { return new Bike.redOne(); }
+  factory GoogleOne.Vehicle() { return new Bike.redOne(); }
 }
 
 
-class DefaultFactoryTest {
-  static testMain() {
-    Expect.equals(true, (new Bike.redOne()) is Bike);
-    Expect.equals(true, (new SpaceShip()) is GoogleOne);
-    Expect.equals(true, (new Vehicle()) is Bike);
-  }
-}
-
 main() {
-  DefaultFactoryTest.testMain();
+  Expect.equals(true, (new Bike.redOne()) is Bike);
+  Expect.equals(true, (new SpaceShip()) is GoogleOne);
+  Expect.equals(true, (new Vehicle()) is Bike);
 }