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-rw-r--r--testsuite/tests/deriving/should_compile/T4816.hs10
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diff --git a/testsuite/tests/deriving/should_compile/T4816.hs b/testsuite/tests/deriving/should_compile/T4816.hs
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+++ b/testsuite/tests/deriving/should_compile/T4816.hs
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+{-# LANGUAGE DeriveFunctor #-}
+
+module T4816 where
+
+data Silly a = Sillly a
+
+data Baz o = Baz {
+ foo :: o,
+ bar :: Silly ()
+ } deriving (Functor)