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

pkg/kernel/testcases/reify/super3_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.md file.
+
+library super3_test;
+
+import 'test_base.dart';
+
+class A<T> {
+  get foo => T;
+}
+
+class B extends A<A> {
+  B();
+  B.redirect() : this();
+}
+
+main() {
+  new B().foo;
+  new B.redirect();
+}