rem: createInstance(Components.interfaces.nsIUpdatePrompt); 
add: createInstance(Components.interfaces.nsIUpdatePrompt); 
context:     function Callback(update, methodName) {      this._update = update;      this._methodName = methodName;      this._prompter =         Components.classes["@mozilla.org/updates/update-prompt;1"].        createInstance(Components.interfaces.nsIUpdatePrompt);          }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10234/dd0789ea577a496e2622a164a469a9cb1bcf058d/updates.js/buggy/toolkit/mozapps/update/content/updates.js