[lld] [MachO LLD] Respect -all_load with --start-lib --end-lib style archives (PR #93993)

[Kyungwoo Lee via llvm-commits]

https://github.com/kyulee-com approved this pull request.

lgtm. I believe this is required to support distributed thinlto (d-thinlto) by specifying each archive member explicitly using `--start-lib/--end-lib`, instead of passing the archive file directly.
Btw, I'm curious how we handle the `-force_load` case (`case OPT_force_load`) for d-thinlto.

https://github.com/llvm/llvm-project/pull/93993