[clang] [flang][driver] Don't use -whole-archive on Darwin (PR #75393)

[Andrzej Warzyński via cfe-commits]

banach-space wrote:

> LGTM. Worked fine on my machine.
> 
> NOTE: tested by replacing `CommonArgs.cpp` in main, to avoid conflicts.

Thanks for checking and apologies for the merge conflict - I thought that I was up to date :( I've just rebased and force-pushed. 

I will be landing this today if there are no further comments 🙏🏻 

https://github.com/llvm/llvm-project/pull/75393