rem: FeedCache.removeFeed(url); 
add: FeedCache.removeFeed(aFeed.url); 
context:   onParseError: function(aFeed)   {    if (aFeed && aFeed.downloadCallback)    {      if (aFeed.downloadCallback)        aFeed.downloadCallback.downloaded(aFeed, kNewsBlogInvalidFeed);      FeedCache.removeFeed(url);    }  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/ea19d22f4d19a3018e8e7e0c03e02e7e00361fc2/Feed.js/buggy/mail/extensions/newsblog/content/Feed.js