getSourceFileFromFirstSourceLine: function(context, frame, eval_body) 
getSourceFileFromFirstSourceLine: function(context, frame, source) 
    getSourceFileFromFirstSourceLine: function(context, frame, eval_body)    {        var firstLine = eval_body.substr(0, 256);  // guard against giants        return this.getSourceFileFromSourceLine(firstLine, eval_body, context);    },
2454	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2454/4430f0c18a86cfa77637c382657dd43348a627ce/debugger.js/clean/extension/content/firebug/debugger.js