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{-# LANGUAGE Rank2Types, FlexibleInstances #-}
-- !!! Check that forall types can't be arguments
module ShouldFail where
data T s a = MkT s a
instance Ord a => Ord (forall s. T s a)
-- A for-all should not appear as an argument to Ord
g :: T s (forall b.b)
g = error "urk"
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