Test Trac #9323

testsuite/tests/typecheck/should_fail/T9323.hs

+module T9323 where
+
+broken :: [Int]
+broken = ()
+
+ambiguous :: a -> String
+ambiguous _ = show 0

testsuite/tests/typecheck/should_fail/T9323.stderr

+
+T9323.hs:4:10:
+    Couldn't match expected type ‘[Int]’ with actual type ‘()’
+    In the expression: ()
+    In an equation for ‘broken’: broken = ()

testsuite/tests/typecheck/should_fail/all.T

@@ -335,3 +335,4 @@ test('T9033', normal, compile_fail, [''])
 test('T8883', normal, compile_fail, [''])
 test('T9196', normal, compile_fail, [''])
 test('T9305', normal, compile_fail, [''])
+test('T9323', normal, compile_fail, [''])