Migrate block 43.

tests/language_2/bailout6_test.dart

 // Copyright (c) 2013, 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.
 
 import "package:expect/expect.dart";
 
 // Test for dart2js to make sure the computed bailout environment is
 // correct.
 
 var global;
@@ skipping 20 matching lines @@
     Expect.equals(42, a.foo());
   }
 
   a.array = new Map();
   a.array[0] = 42;
   for (int i = 0; i < 2; i++) {
     Expect.equals(42, a.foo());
   }
   global = null;
 }