anchor.diff:    var profile;
   
     var blockRef;
  -
  -  get currentFileNames => files.map((file) => file.name).join(', ');
   
     HydraElement.created() : super.created();
   
  
positive.code:   "webrebels-2014-method-function-hack": _createWebRebelsDemo("8-method-function-hack"),
  };
  
  timeAndReport(action, report) {
    final stopwatch = new Stopwatch()..start();
    final result = action();
  
negative.code: 
    _loadDemo(fragment) {
      if (DEMOS.containsKey(fragment)) {
        _wait(DEMOS[fragment], _requestArtifact);
        return true;
      }
  
      final driveMatch = DRIVE_REGEXP.firstMatch(fragment);
      if (driveMatch != null) {
        _wait(["${DRIVE_ROOT}${driveMatch.group(1)}"], _requestArtifact);
        return true;
      }
  
  