Migrate block 114 (and some of 113).

tests/language_2/generic_instanceof5_test.dart

 // Copyright (c) 2014, 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 instanceof works correctly with type variables.
 
 import "package:expect/expect.dart";
 
 class A {}
 
 class B<T, S> {}
 
 class C<U, V> extends A with B<V, U> {}
 
 class D<T> {
   foo(x) {
     // Avoid inlining.
     if (new DateTime.now().millisecondsSinceEpoch == 42) foo(x);
     return x is T;
     return true; // Avoid inlining.
   }
 }
 
 main() {
   Expect.isTrue(new D<B<int, bool>>().foo(new C<bool, int>()));
 }