rem: if (script.tag in this.scriptInfoByTag) return this.scriptInfoByTag[script.tag].url; 
add: if (script.tag in this.scriptInfoByTag) return this.scriptInfoByTag[script.tag].url; 
context:     getSourceURL: function(script)    {    	if (script.tag in this.scriptInfoByTag)        	return this.scriptInfoByTag[script.tag].url;        else        	return script.fileName;    },
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/2e2e6e5e5acba26e69243682fad1c16a0bea8a6a/firebug-service.js/buggy/extension/components/firebug-service.js