anchor.diff:      VmServiceWrapper service, {
       @required Future<void> onClosed,
     }) async {
  -    const kServiceStream = '_Service';
  +    const kServiceStreamOld = '_Service';
  +    const kServiceStreamNew = 'Service';
   
       final vm = await service.getVM();
       this.vm = vm;
  
positive.code:       EventStreams.kGC,
        EventStreams.kTimeline,
        EventStreams.kExtension,
        kServiceStream,
      ];
  
      // The following streams are not yet supported by Flutter Web.
  
negative.code: 
      connectedApp = ConnectedApp();
  
      void handleServiceEvent(Event e) {
        if (e.kind == EventKind.kServiceRegistered) {
          if (!_registeredMethodsForService.containsKey(e.service)) {
            _registeredMethodsForService[e.service] = [e.method];
  