anchor.diff:      }
       children.add(cls);
     }
  -  
  +
     Future<ServiceObject> get(String command) {
       return isolate.get(id + "/$command");
     }
  
positive.code: 
    void _processHits(List scriptHits) {
      // Update hits table.
      _hits.clear();
      for (var i = 0; i < scriptHits.length; i += 2) {
        var line = scriptHits[i];
        var hit = scriptHits[i + 1]; // hit status.
        assert(line >= 1); // Lines start at 1.
        _hits[line] = hit;
      }
      _applyHitsToLines();
  
negative.code:       superClass._addToChildren(this);
      }
      error = map['error'];
  
      var allocationStats = map['allocationStats'];
      if (allocationStats != null) {
        newSpace.update(allocationStats['new']);
  