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-rw-r--r--testsuite/tests/typecheck/should_fail/tcfail048.hs4
1 files changed, 4 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_fail/tcfail048.hs b/testsuite/tests/typecheck/should_fail/tcfail048.hs
new file mode 100644
index 0000000000..f4400e2fa0
--- /dev/null
+++ b/testsuite/tests/typecheck/should_fail/tcfail048.hs
@@ -0,0 +1,4 @@
+module ShouldFail where
+
+class (B a) => C a where
+ op1 :: a -> a