rem: else throw Components.results.NS_ERROR_NO_INTERFACE; 
add: throw Components.results.NS_ERROR_NO_INTERFACE; 
context:     QueryInterface:    function( iid )    {        if (iid.equals(Components.interfaces.nsIObserver) ||            iid.equals(Components.interfaces.nsISupports)) {            return this;        }        else            throw Components.results.NS_ERROR_NO_INTERFACE;    },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/a96ab64df42ecc9e79159239c395d28aeb03f512/calWcapSession.js/clean/calendar/providers/wcap/calWcapSession.js