Reorganize VM Service client

runtime/bin/vmservice/client/lib/src/observatory/isolate_manager.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.
 
 part of observatory;
 
 /// Collection of isolates which are running in the VM. Updated
 class IsolateManager extends ObservableMixin {
   ObservatoryApplication _application;
   ObservatoryApplication get application => _application;
@@ skipping 31 matching lines @@
       var id = k['id'];
       var name = k['name'];
       if (isolates[id] == null) {
         var isolate = new Isolate(id, name);
         print('Adding $isolate');
         isolates[id] = isolate;
       }
     });
   }
 }