Test Trac #7937

testsuite/tests/rename/should_fail/T7937.hs

+module T7937 where
+
+-- Without this operator definition, a precedence parsing error is reported.
+-- Perhaps the default precedence is being assumed for the unknown operator?
+-- That seems wrong, since there's no way to know what the precedence will be when
+-- the operator is defined as the programmer intended.
+
+foo = 3 > 4 *** 5 == 6
+
+

testsuite/tests/rename/should_fail/T7937.stderr

+
+T7937.hs:8:13:
+    Not in scope: ‛***’
+    Perhaps you meant ‛**’ (imported from Prelude)

testsuite/tests/rename/should_fail/all.T

@@ -108,3 +108,4 @@ test('T7338', normal, compile_fail, [''])
 test('T7338a', normal, compile_fail, [''])
 test('T7454', normal, compile, [''])
 test('T7906', normal, compile_fail, [''])
+test('T7937', normal, compile_fail, [''])