do_one (WwPrim, _) = 'P'
do_one (WwEnum, _) = 'E'
do_one (WwStrict, arg_ty_char) = arg_ty_char
- do_one (WwUnpack _, arg_ty_char)
+ do_one (WwUnpack _ _, arg_ty_char)
= if arg_ty_char `elem` "CIJFDTS"
then toLower arg_ty_char
else if arg_ty_char == '+' then 't'