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-rw-r--r--testsuite/tests/ghci/scripts/T14828.script6
1 files changed, 5 insertions, 1 deletions
diff --git a/testsuite/tests/ghci/scripts/T14828.script b/testsuite/tests/ghci/scripts/T14828.script
index bb0650fbd6..59d616abde 100644
--- a/testsuite/tests/ghci/scripts/T14828.script
+++ b/testsuite/tests/ghci/scripts/T14828.script
@@ -15,4 +15,8 @@
:p mappend
:m + Data.List
-:p foldl' \ No newline at end of file
+:p foldl'
+
+:set -XRankNTypes
+f :: (forall a. a -> a) -> b -> b; f g x = g x
+:p f