anchor.diff:        'compilationDuration': compiler.totalCompileTime.elapsed.toString(),
         'toJsonDuration': 0,
         'dumpInfoDuration': this.timing.toString(),
  -      'noSuchMethodEnabled': backend.enabledNoSuchMethod
  +      'noSuchMethodEnabled': backend.enabledNoSuchMethod,
  +      'minified': compiler.enableMinification
       };
   
       outJson['program'] = generalProgramInfo;
  
positive.code:       'deferredFiles': compiler.deferredLoadTask.computeDeferredMap(),
        // This increases when new information is added to the map, but the viewer
        // still is compatible.
        'dump_minor_version': '1'
      };
  
      Duration toJsonDuration = new DateTime.now().difference(startToJsonTime);
  
negative.code:   Map<int, T> _idToElement = {};
    Map<T, int> _elementToId = {};
    int _idCounter = 0;
    final String name;
  
    IdMapper(this.name);
  
  