Reland "Merge more Kernel infrastructure from kernel_sdk SDK fork."

tests/kernel/unsorted/super_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.
+
+import 'expect.dart';
+
+class A {
+  var field = 9;
+  var called = false;
+
+  superMethod() {
+    Expect.isTrue(field == 10);
+    called = true;
+    return true;
+  }
+}
+
+class B extends A {
+  doit() {
+    Expect.isTrue((super.field = 10) == 10);
+    Expect.isTrue(super.superMethod());
+    if (called) {
+      Expect.isTrue((super.field = 11) == 11);
+    }
+    return super.field;
+  }
+}
+
+class C extends B {
+  set field(v) {
+    throw 'should not happen';
+  }
+}
+
+main() {
+  var c = new C();
+  Expect.isTrue(c.field == 9);
+  Expect.isTrue(c.doit() == 11);
+  Expect.isTrue(c.field == 11);
+}