anchor.diff:        final String content = match.group(4);
   
         // Filter out non-Flutter originated noise from the engine.
  -      if (category != 'Runner')
  +      if (_appName != null && category != _appName)
           return null;
   
         if (tag != null && tag != '(Flutter)')
  
positive.code: class _IOSSimulatorLogReader extends DeviceLogReader {
    String _appName;
  
    _IOSSimulatorLogReader(this.device, ApplicationPackage app) {
      _linesController = new StreamController<String>.broadcast(
        onListen: _start,
        onCancel: _stop
  
negative.code: 
    @override
    DeviceLogReader getLogReader({ApplicationPackage app}) {
      assert(app is IOSApp);
      _logReaders ??= <ApplicationPackage, _IOSSimulatorLogReader>{};
      return _logReaders.putIfAbsent(app, () => new _IOSSimulatorLogReader(this, app));
    }
  