rem: return null; 
add: return null; 
context:     getEvalExpressionFromFile: function(url, lineNo, context)     {           if (context && context.sourceCache)        {            var in_url = FBL.reJavascript.exec(url);            if (in_url)            {                var m = reEval.exec(in_url[1]);                if (m)                     return m[1];                else                     return null;            }                    var htm = reHTM.exec(url);            if (htm) {                lineNo = lineNo + 1; // embedded scripts seem to be off by one?  XXXjjb heuristic            }            // Walk backwards from the first line in the function until we find the line which            // matches the pattern above, which is the eval call            var line = "";            for (var i = 0; i < 3; ++i)            {                line = context.sourceCache.getLine(url, lineNo-i) + line;                if (line && line != null)                {                    var m = reEval.exec(line);                    if (m)                        return m[1];                               }            }        }        return null;       },
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/8237a6359bebacf3e34f1134ef713c687c8e3edb/debugger.js/buggy/extension/content/firebug/debugger.js