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{-# LANGUAGE RankNTypes #-}
-- Types should be checked for well-formedness only after
-- expanding type synonyms. GHC 5.03 fails this
module ShouldCompile where
type All u = forall x. x->u
type All' u = u -> All u
all1 :: All u -> (u -> All u) -> All u
all1 _ _ = undefined
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