Support for observable models, fixes #259

test/data/input/main_code_in_dart_file.dart

Index: test/data/input/main_code_in_dart_file.dart
diff --git a/test/data/input/main_code_in_dart_file.dart b/test/data/input/main_code_in_dart_file.dart
index 728b0d556bf2ed6d667060f5c3df069d62b7e9a3..15f7c9074b112f8c9af81cce6124990e160422c3 100644
--- a/test/data/input/main_code_in_dart_file.dart
+++ b/test/data/input/main_code_in_dart_file.dart
@@ -1,12 +1,12 @@
 library main;
 
 import 'dart:html';
-import 'package:web_ui/watcher.dart';
+import 'package:web_ui/observe.dart';
 import 'common.dart';
 
 main() {
   topLevelVar = "hello";
-  dispatch();
-  window.setTimeout(() => window.postMessage('done', '*'), 0);
+  deliverChangesSync();
+  window.setImmediate(() => window.postMessage('done', '*'));
 }