rem: aItem.calendar.deleteItem (aItem, aListener); 
add: return aItem.calendar.deleteItem(aItem, aListener); 
context:     deleteItem: function (aItem, aListener) {        if (aItem.calendar == null) {            // XXX Can't delete item with NULL parent            throw Components.results.NS_ERROR_FAILURE;        }        aItem.calendar.deleteItem (aItem, aListener);    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/7869216e4570cde89a8ccca7737a13729ec96de4/calCompositeCalendar.js/buggy/calendar/providers/composite/calCompositeCalendar.js