rem: var scriptInfo = this.scriptInfoByTag[script.tag]; 
add: var scriptInfo = this.scriptInfoByTag[script.tag]; 
context:     monitor: function(script, debuggr)    {        var lineNo = this.findFirstExecutableLine(script);		var scriptInfo = this.scriptInfoByTag[script.tag];        var url = scriptInfo.url;        if (lineNo != -1 && this.addBreakpoint(BP_MONITOR, url, lineNo, debuggr, scriptInfo))        {            ++monitorCount;            dispatch(debuggers, "onToggleMonitor", [url, lineNo, true]);        }    },
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/2e2e6e5e5acba26e69243682fad1c16a0bea8a6a/firebug-service.js/buggy/extension/components/firebug-service.js