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{-# LANGUAGE TypeFamilies #-}
module T6018failclosed2 where
-- this one is a strange beast. Last equation is unreachable and thus it is
-- removed. It is then impossible to typecheck barapp and thus we generate an
-- error
type family Bar a = r | r -> a where
Bar Int = Bool
Bar Bool = Int
Bar Bool = Char
bar :: Bar a -> Bar a
bar x = x
barapp :: Char
barapp = bar 'c'
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