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{-# LANGUAGE GADTs #-}
-- !!! deriving for GADTs which declare Haskell98 data types.
-- bug reported as https://gitlab.haskell.org/ghc/ghc/issues/902
module ShouldSucceed where
data Maybe1 a where {
Nothing1 :: Maybe1 a ;
Just1 :: a -> Maybe1 a
} deriving (Eq,Ord)
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