ffi-deriv1 is broken(736)

testsuite/tests/ghc-regress/ccall/should_compile/all.T

@@ -30,4 +30,4 @@ test('cc010', expect_fail_for(['extcore','optextcore']), compile, [''])
 test('cc011', normal, compile, [''])
 test('cc012', normal, compile, [''])
 test('ffi001', normal, compile, [''])
-test('ffi-deriv1', normal, compile, [''])
+test('ffi-deriv1', expect_broken(736), compile, [''])