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diff --git a/testsuite/tests/th/T2700.hs b/testsuite/tests/th/T2700.hs
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+++ b/testsuite/tests/th/T2700.hs
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+{-# LANGUAGE TemplateHaskell #-}
+
+module T2700 where
+import Language.Haskell.TH
+import System.IO
+
+$( do { d <- sigD (mkName "foo") [t| (Int -> Bool) -> Bool |]
+ ; runIO (hPutStrLn stderr (pprint d))
+ ; return [] }
+ )