Merge the work on Generic Types Reification from 'dart-lang/reify' repo

pkg/kernel/testcases/reify/literals_test.dart

+// Copyright (c) 2016, 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.
+
+library literals_test;
+
+import 'test_base.dart';
+
+class A {}
+
+class B {}
+
+main() {
+  expectTrue(<A>[] is List<A>);
+  expectTrue(<A>[] is! List<B>);
+
+  expectTrue(<A, B>{} is Map<A, B>);
+  expectTrue(<A, B>{} is! Map<A, A>);
+  expectTrue(<A, B>{} is! Map<B, B>);
+}