Migrate block 116.

tests/language_strong/identical_const_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.
-
-import 'package:expect/expect.dart';
-
-f() {}
-const g = 1;
-
-const identical_ff = identical(f, f);
-const identical_fg = identical(f, g);
-const identical_gf = identical(g, f);
-const identical_gg = identical(g, g);
-
-// Verify proper compile time computation of identical()
-const a = const {
-  identical_ff: 0, //# 01: static type warning
-  identical_gg: 0, //# 02: static type warning
-  true: 0
-};
-
-const b = const {
-  identical_fg: 0, //# 03: static type warning
-  identical_gf: 0, //# 04: static type warning
-  false: 0
-};
-
-use(x) => x;
-
-main() {
-  use(a);
-  use(b);
-
-  // Verify proper run time computation of identical()
-  Expect.isTrue(identical_ff); //# 05: ok
-  Expect.isTrue(identical_gg); //# 06: ok
-  Expect.isFalse(identical_fg); //# 07: ok
-  Expect.isFalse(identical_gf); //# 08: ok
-}