We can now name the current VM using the service protocol.

runtime/observatory/lib/src/elements/nav_bar.dart

 // 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 nav_bar_element;
 
 import 'dart:async';
 import 'dart:html' hide Notification;
 import 'observatory_element.dart';
 import 'package:observatory/service.dart';
@@ skipping 58 matching lines @@
   @published bool last = false;
 
   TopNavMenuElement.created() : super.created();
 }
 
 @CustomTag('vm-nav-menu')
 class VMNavMenuElement extends ObservatoryElement {
   @published bool last = false;
   @published VM vm;
 
+  String nameAndAddress(name, target) {
+    if (name != null && target != null) {
+      return '${name}@${target.networkAddress}';
+    } else {
+      return '<initializing>';
+    }
+  }
+
   VMNavMenuElement.created() : super.created();
 }
 
 @CustomTag('isolate-nav-menu')
 class IsolateNavMenuElement extends ObservatoryElement {
   @published bool last = false;
   @published Isolate isolate;
 
   IsolateNavMenuElement.created() : super.created();
 }
@@ skipping 55 matching lines @@
   @observable get isUnexpectedError {
     return (exception is! NetworkRpcException);
   }
 
   void closeItem(MouseEvent e, var detail, Element target) {
     notifications.remove(notification);
   }
 
   NavNotifyExceptionElement.created() : super.created();
 }