anchor.diff:      // Send timing analytics.
       globals.flutterUsage.sendTiming('hot', 'restart', restartTimer.elapsed);
   
  -    // In benchmark mode, make sure all stream notifications have finished.
       if (benchmarkMode) {
         final List<Future<void>> isolateNotifications = <Future<void>>[];
         for (final FlutterDevice device in flutterDevices) {
  
positive.code:         );
        }
        await Future.wait(isolateNotifications);
      }
      // Toggle the main dill name after successfully uploading.
      _swap =! _swap;
  
  
negative.code:           .catchError((dynamic error, StackTrace stackTrace) {
              // Do nothing on a SentinelException since it means the isolate
              // has already been killed.
              // Error code 105 indicates the isolate is not yet runnable, and might
              // be triggered if the tool is attempting to kill the asset parsing
              // isolate before it has finished starting up.
            }, test: (dynamic error) => error is vm_service.SentinelException
              || (error is vm_service.RPCError && error.code == 105)));
        }
      }
      await Future.wait(operations);
  