rem: get readOnly() { throw Components.results.NS_ERROR_NOT_IMPLEMENTED; 
add: get canRefresh() { return true; 
context:     get readOnly() {         throw Components.results.NS_ERROR_NOT_IMPLEMENTED;    },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/7be7e40d2abfd227cbaa3a2dbb30063fa2a6852d/calCompositeCalendar.js/buggy/calendar/providers/composite/calCompositeCalendar.js