add: !aIID.equals(Components.interfaces.calICompositeObserver) && 
context:     QueryInterface: function (aIID) {        if (!aIID.equals(Components.interfaces.nsISupports) &&            !aIID.equals(Components.interfaces.calIObserver))        {            throw Components.results.NS_ERROR_NO_INTERFACE;        }        return this;    },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/0dc0c1e98a341efeaff57712840c743e177b6365/unifinder.js/buggy/calendar/resources/content/unifinder.js