anchor.diff:  
   class LiveDeployManager {
       static final LiveDeployManager _singleton = new LiveDeployManager._internal();
  -
  +    Notifier _notifier = Dependencies.dependency[Notifier];
       StreamSubscription _sub;
  -    Function _onError;
   
       factory LiveDeployManager() {
         return _singleton;
  
positive.code:         setDeploymentTime(deployContainer,
              (new DateTime.now()).millisecondsSinceEpoch);
        }).catchError((e) {
          _onError('Error During Live Deployment', exception: e);
        }).whenComplete(() {
          _monitor = null;
        });
  
negative.code: import '../workspace_utils.dart';
  import '../apps/app_utils.dart';
  import '../spark_flags.dart';
  import '../utils.dart';
  import '../dependency.dart';
  
  Logger _logger = new Logger('spark.deploy');
  PreferenceStore get _localPrefs => localStore;
  