Test Trac #5508

testsuite/tests/th/T5508.hs

+{-# LANGUAGE TemplateHaskell #-}
+
+module T5508 where
+
+import Language.Haskell.TH
+
+thb = $(do { let x = mkName "x"
+                 v = return (LamE [VarP x] $ VarE x)
+           ; [| $v . id |] })

testsuite/tests/th/T5508.stderr

+T5508.hs:(7,9)-(9,28): Splicing expression
+    do { let x = mkName "x"
+             v = return (LamE [VarP x] $ VarE x);
+         [| $v . id |] }
+  ======>
+    ((\ x -> x) . id)

testsuite/tests/th/all.T

@@ -207,3 +207,4 @@ test('TH_lookupName',
 test('T5452', normal, compile, ['-v0'])
 test('T5434', extra_clean(['T5434a.hi','T5434a.o']), 
               multimod_compile, ['T5434','-v0 -Wall'])
+test('T5508', normal, compile, ['-v0 -ddump-splices'])