testsuite/tests/safeHaskell/safeInfered/UnsafeInfered17.hs


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{-# LANGUAGE Haskell2010 #-}
{-# OPTIONS_GHC -fwarn-unsafe -Werror #-}
{-# LANGUAGE FlexibleInstances #-}
module UnsafeInfered17 where

class C a where
  f :: a -> String

instance {-# INCOHERENT #-} C a where
  f _ = "a"