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-rw-r--r--testsuite/tests/typecheck/should_compile/tc064.hs7
1 files changed, 7 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_compile/tc064.hs b/testsuite/tests/typecheck/should_compile/tc064.hs
new file mode 100644
index 0000000000..18aecb091d
--- /dev/null
+++ b/testsuite/tests/typecheck/should_compile/tc064.hs
@@ -0,0 +1,7 @@
+module ShouldSucceed where
+
+data Boolean = FF | TT
+
+idb :: Boolean -> Boolean
+idb x = x
+