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diff --git a/testsuite/tests/th/TH_spliceDecl4_Lib.hs b/testsuite/tests/th/TH_spliceDecl4_Lib.hs
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+
+{-# LANGUAGE TemplateHaskell, UndecidableInstances #-}
+
+module TH_spliceDecl4_Lib(
+ instanceIncrSelfTuple,
+ IncrSelf(..)
+)
+where
+import Control.Monad
+import Data.Maybe
+import Language.Haskell.TH
+
+class IncrSelf a where
+ incrSelf :: a -> a
+
+
+
+instanceIncrSelfTuple :: Int -> Q [Dec]
+instanceIncrSelfTuple n = [d| incrSelf value = True |]
+
+