anchor.diff:    }
   
     void _invoke([Object context]) {
  -    spark.selectPrevMarker();
  +    spark._aceManager.selectPrevMarker();
     }
   }
   
  
positive.code:   }
  
    void _invoke([Object context]) {
      spark.selectNextMarker();
    }
  }
  
  
negative.code:   //
    // - End implementation of FilesControllerDelegate interface.
    //
  }
  
  class PlatformInfo {
  