Fold testsuite.git into ghc.git (re #8545)
[ghc.git] / testsuite / tests / deriving / should_fail / T7959.hs
1 {-# LANGUAGE NullaryTypeClasses, StandaloneDeriving #-}
2 module T7959 where
3
4 class A
5 deriving instance A
6 data B deriving A