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

pkg/kernel/testcases/reify/closure2_test.dart

Index: pkg/kernel/testcases/reify/closure2_test.dart
diff --git a/pkg/kernel/testcases/reify/closure2_test.dart b/pkg/kernel/testcases/reify/closure2_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..e44aef9df6de240fa1078b4973885d481da34d05
--- /dev/null
+++ b/pkg/kernel/testcases/reify/closure2_test.dart
@@ -0,0 +1,22 @@
+// 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 closure2_test;
+
+import 'test_base.dart';
+
+class A<T> {
+  fun() => (o) => o is T;
+}
+
+class X {}
+
+class Y {}
+
+main() {
+  var tester = new A<X>().fun();
+
+  expectTrue(tester(new X()));
+  expectFalse(tester(new Y()));
+}