Reload an isolate once it is runnable.

runtime/observatory/lib/src/service/object.dart

 // Copyright (c) 2014, 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 service;
 
 /// Helper function for canceling a Future<StreamSubscription>.
 Future cancelFutureSubscription(
     Future<StreamSubscription> subscriptionFuture) async {
   if (subscriptionFuture != null) {
@@ skipping 656 matching lines @@
     if (eventIsolate == null) {
       event = new ServiceObject._fromMap(vm, map);
     } else {
       // getFromMap creates the Isolate if it hasn't been seen already.
       var isolate = getFromMap(map['isolate']);
       event = new ServiceObject._fromMap(isolate, map);
       if (event.kind == ServiceEvent.kIsolateExit) {
         _isolateCache.remove(isolate.id);
         _buildIsolateList();
       }
+      if (event.kind == ServiceEvent.kIsolateRunnable) {
+        // Force reload once the isolate becomes runnable so that we
+        // update the root library.
+        isolate.reload();
+      }
     }
     var eventStream = _eventStreams[streamId];
     if (eventStream != null) {
       eventStream.addEvent(event);
     } else {
       Logger.root.warning("Ignoring unexpected event on stream '${streamId}'");
     }
   }
 
   int _compareIsolates(Isolate a, Isolate b) {
@@ skipping 3247 matching lines @@
     var v = list[i];
     if ((v is ObservableMap) && _isServiceMap(v)) {
       list[i] = owner.getFromMap(v);
     } else if (v is ObservableList) {
       _upgradeObservableList(v, owner);
     } else if (v is ObservableMap) {
       _upgradeObservableMap(v, owner);
     }
   }
 }