[flang-commits] [flang] [flang] Fix flang tests on MacOS (PR #70811)

[Andrzej Warzyński via flang-commits]

https://github.com/banach-space approved this pull request.

This is typical case of "few lines of code that expose some non-trivial issues" 😂 . 

Thanks for all the investigation - this is a much needed contribution that brings Darwin support in parity with other targets. Much appreciated!

I've added a few more questions/suggestions, but nothing major - this is practically ready to land, so approving as is. LGTM!

https://github.com/llvm/llvm-project/pull/70811