Wrapping leaf nodes in non polymer elements

runtime/observatory/lib/src/models/objects/object.dart

Index: runtime/observatory/lib/src/models/objects/object.dart
diff --git a/runtime/observatory/lib/src/models/objects/object.dart b/runtime/observatory/lib/src/models/objects/object.dart
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+++ b/runtime/observatory/lib/src/models/objects/object.dart
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+// 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
+
+part of models;
+
+abstract class ObjectRef {
+  /// A unique identifier for an Object.
+  String get id;
+}
+
+abstract class Object implements ObjectRef {
+  /// If an object is allocated in the Dart heap. [optional]
+  //@Class get class;
+
+  /// The size of this object in the heap. [optional]
+  int get size;
+}