Move test case for #8631 to the correct directory.

testsuite/tests/deriving/should_compile/all.T

@@ -42,3 +42,4 @@ test('T7710', normal, compile, [''])
 test('AutoDeriveTypeable', normal, compile, [''])
 
 test('T8138', reqlib('primitive'), compile, ['-O2'])
+test('T8631', normal, compile, [''])
\ No newline at end of file

testsuite/tests/deriving/should_run/all.T

@@ -36,4 +36,4 @@ test('T5628', exit_code(1), compile_and_run, [''])
 test('T5712', normal, compile_and_run, [''])
 test('T7931', normal, compile_and_run, [''])
 test('T8280', normal, compile_and_run, [''])
-test('T8631', normal, compile, [''])
+