rem: return true; 
add: return (ex.code = code); 
context:   function MozXMLDocumentBuilder_isDOMExceptionCode(ex, code) {    return true;  }
meta: 7959	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/7959/445e296d01be7b5f38174dfa88a48dc85bf2a65a/DOMTestCase.js/buggy/ecmascript/DOMTestCase.js