anchor.diff:      // probably comes from FSEvents reporting an add that happened prior to the
       // watch beginning.
       if (type == ChangeType.ADD && _files.contains(path)) return;
  +
  +    if (_runningOnBuildbot) {
  +      print("emitting $type ${p.relative(path, from: directory)}");
  +    }
   
       _eventsController.add(new WatchEvent(type, path));
     }
  
positive.code:       if (entity is! Directory) _files.add(entity.path);
      },
          onError: _emitError,
          onDone: _readyCompleter.complete,
          cancelOnError: true);
    }
  
  
negative.code: 
  import 'dart:async';
  import 'dart:io';
  
  import 'package:path/path.dart' as p;
  
  import '../constructable_file_system_event.dart';
  import '../path_set.dart';
  