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{-# LANGUAGE QuantifiedConstraints, UndecidableInstances #-}
{-# LANGUAGE RankNTypes #-}
{-# LANGUAGE NoImplicitPrelude #-}
module T22216a where
class Eq a
class Eq a => Ord a
class (forall b. Eq b => Eq (f b)) => Eq1 f
class (Eq1 f, forall b. Ord b => Ord (f b)) => Ord1 f
foo :: (Ord a, Ord1 f) => (Eq (f a) => r) -> r
foo r = r
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