Re-land beginning Dart 2.0 test migration.

tests/corelib_2/apply_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.
 
 import "package:expect/expect.dart";
 import "symbol_map_helper.dart";
 
 // Testing Function.apply calls correctly.
 // This test is not testing error handling, only that correct parameters
 // cause a correct call.
@@ skipping 56 matching lines @@
   Expect.equals(
       42,
       Function.apply(Function.apply, [
         test2,
         [17, 25]
       ]));
 
   // Test that apply works on callable objects.
   testList(42, new Callable(), [13, 29]);
 }