Reapply "Remove Object.dynamic."

samples/maps/directions.dart

 // 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.
 
 #import('dart:html');
 #import('maps.dart');
 
 DirectionsRenderer directionsDisplay;
 DirectionsService directionsService;
 
@@ skipping 20 matching lines @@
 
 main() {
   initialize();
 
   var myOptions = {
     'zoom': 9,
     'mapTypeId': MapTypeId.ROADMAP,
     'center': new LatLng(47.6097, -122.3331)
   };
   var map = new GMap('#map_canvas', myOptions);
-        
+
   directionsDisplay = new DirectionsRenderer(map);
   directionsDisplay.setPanel('#directions_panel');
   directionsService = new DirectionsService();
 
   var control = document.query('#control');
   control.style.display = 'block';
-  
-  map.controls[ControlPosition.TOP].dynamic.push('#control');
+
+  (map.controls[ControlPosition.TOP] as Dynamic).push('#control');
 
   query('#start').on.change.add(calcRoute);
   query('#end').on.change.add(calcRoute);
-}
+}