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-rw-r--r--testsuite/tests/typecheck/should_fail/tcfail057.hs6
1 files changed, 6 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_fail/tcfail057.hs b/testsuite/tests/typecheck/should_fail/tcfail057.hs
new file mode 100644
index 0000000000..9659cf0801
--- /dev/null
+++ b/testsuite/tests/typecheck/should_fail/tcfail057.hs
@@ -0,0 +1,6 @@
+module ShouldFail where
+
+-- !!! inadvertently using -> instead of =>
+
+f :: (RealFrac a) -> a -> a
+f x = x