These tests started failing on the public build-bots recently
with following error:
AssertionError: 'error: Couldn't lookup symbols: __ZNSt3__122__libcpp_verbose_abortEPKcz ' is not success
We've seen this previously when the SDKs we used to compile the
std module differ from the test program. (see D146714, rdar://107052293, D139361, rdar://102427461)
Skip these tests on older MacOS versions for now.
This is possibly related to the recent std module changes in D144322.