rem: sourceFileMap[url] = sourceFile; 
add: context.sourceFileMap[url] = sourceFile; 
context:     function addFile(url, scriptTagNumber)    {            if (oldMap && url in oldMap)            {                var sourceFile = oldMap[url];                sourceFileMap[url] = sourceFile;            }            else            {                var sourceFile = new FBL.ScriptTagSourceFile(url, scriptTagNumber);                sourceFileMap[url] = sourceFile;            }    }
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/76449ef4d8385610e64112c53410246cfda12c62/lib.js/buggy/extension/content/firebug/lib.js