testsuite/tests/ghc-regress/typecheck/should_fail/tcfail184.stderr


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tcfail184.hs:8:19:
    Illegal polymorphic or qualified type:
      forall a. Ord a => [a] -> [a]
    Perhaps you intended to use -XRankNTypes or -XRank2Types
    In the definition of data constructor `MkSwizzle'
    In the newtype declaration for `Swizzle'