Unify Object implementation across dart2js and VM.

runtime/lib/object_patch.dart

Index: runtime/lib/object_patch.dart
diff --git a/runtime/lib/object_patch.dart b/runtime/lib/object_patch.dart
new file mode 100644
index 0000000000000000000000000000000000000000..52f1bce50b7db77b2cd01aca4e3ed103ae311149
--- /dev/null
+++ b/runtime/lib/object_patch.dart
@@ -0,0 +1,13 @@
+// Copyright (c) 2012, 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.
+
+patch class ObjectImplementation {
+  /* patch */ static String toStringImpl(Object object)
+      native "Object_toString";
+
+  /* patch */ static void noSuchMethodImpl(Object object,
+                                           String functionName,
+                                           List args)
+      native "Object_noSuchMethod";
+}