RDFServiceImpl::GetDateLiteral(PRTime time, nsIRDFDate** literal)
RDFServiceImpl::GetDateLiteral(PRTime aTime, nsIRDFDate** aResult)
RDFServiceImpl::GetDateLiteral(PRTime time, nsIRDFDate** literal){    // XXX how do we cache these? should they live in their own hashtable?    DateImpl* result = new DateImpl(time);    if (! result)        return NS_ERROR_OUT_OF_MEMORY;    *literal = result;    NS_ADDREF(result);    return NS_OK;}