Implement Model-Driven-Views spec for Dart

tests/html/mdv_observe_utils.dart

Index: tests/html/mdv_observe_utils.dart
diff --git a/tests/html/mdv_observe_utils.dart b/tests/html/mdv_observe_utils.dart
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+// Copyright (c) 2013, 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 mdv_observe_utils;
+
+import 'package:mdv_observe/mdv_observe.dart';
+
+toSymbolMap(Map map) {
+  var result = new ObservableMap.linked();
+  map.forEach((key, value) {
+    if (value is Map) value = toSymbolMap(value);
+    result[new Symbol(key)] = value;
+  });
+  return result;
+}