Move service into VM

runtime/vm/service/running_isolates.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 vmservice;
 
 class RunningIsolates implements MessageRouter {
   final Map<int, RunningIsolate> isolates = new Map<int, RunningIsolate>();
 
   RunningIsolates();
@@ skipping 57 matching lines @@
     // Consume '/isolates/isolateId'
     message.path.removeRange(0, 2);
     if (message.path.length == 0) {
       // The message now has an empty path.
       message.setErrorResponse('Empty path for isolate: /isolates/$isolateId');
       return message.response;
     }
     return isolate.route(message);
   }
 }