test_may_duplicate.m:023: Error: the `may_duplicate' attribute on the
test_may_duplicate.m:023:   foreign_proc contradicts the `no_inline' pragma on
test_may_duplicate.m:023:   the predicate.
test_may_duplicate.m:033: Error: the `may_not_duplicate' attribute on the
test_may_duplicate.m:033:   foreign_proc contradicts the `inline' pragma on the
test_may_duplicate.m:033:   predicate.