var sourceFiles = updateScriptFiles(this.context); 
var sourceFiles = this.getLocationList(); 
    getDefaultLocation: function()    {        var sourceFiles = updateScriptFiles(this.context);        return sourceFiles[0];    },
2454	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2454/c5f013dccda5f25ec6c3894c73898353bae36759/debugger.js/buggy/extension/content/firebug/debugger.js