T17394.hs:10:13-65: Splicing type infixT (conT ''Maybe) ''(:*:) (conT ''Maybe) ======> (:*:) Maybe Maybe T17394.hs:9:13-67: Splicing type infixT (promotedT 'Nothing) '(:*:) (promotedT 'Nothing) ======> '(:*:) 'Nothing 'Nothing