isPArrFakeCon      :: DataCon -> Bool
isPArrFakeCon dcon  = dcon == parrFakeCon (dataConSourceArity dcon)
isPArrFakeCon      :: DataCon -> Bool
isPArrFakeCon dcon  = dcon == parrFakeCon (dataConSourceArity dcon)
isPArrFakeCon dcon  = dcon == parrFakeCon (dataConSourceArity dcon)