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+{-# LANGUAGE TemplateHaskell #-}
+module T13837 where
+
+import Language.Haskell.TH.Lib
+import Language.Haskell.TH.Syntax
+
+test_local_tyfam_expansion :: String
+test_local_tyfam_expansion =
+ $(do fam_name <- newName "Fam"
+ stringE . show =<< qReifyInstances fam_name [])