1 files changed, 17 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_compile/tc155.hs b/testsuite/tests/typecheck/should_compile/tc155.hs
new file mode 100644
index 0000000000..598afc94da
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+++ b/testsuite/tests/typecheck/should_compile/tc155.hs
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+{-# LANGUAGE LiberalTypeSynonyms #-}
+
+-- The type sig for 'test' is illegal in H98 because of the
+-- partial application of the type sig.
+-- But with LiberalTypeSynonyms it should be OK because when
+-- you expand the type synonyms it's just Int->Int
+-- 	c.f should_fail/tcfail107.hs
+
+module ShouldCompile where
+
+type Thing m = m ()
+
+type Const a b = a
+
+test :: Thing (Const Int) -> Thing (Const Int)
+test = test
+