return new LayoutATestCmdLineHandler().QueryInterface(iid); 
return new RefTestCmdLineHandler().QueryInterface(iid); 
  createInstance : function(outer, iid)  {    if (outer != null) {      throw Components.results.NS_ERROR_NO_AGGREGATION;    }    return new LayoutATestCmdLineHandler().QueryInterface(iid);  }
5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5872/49976006ad72a5fcb2eeb64a7c5693d56f562029/reftest-cmdline.js/buggy/layout/tools/reftest/reftest-cmdline.js