[clang] [lld] [llvm] [ThinLTO] Reduce the number of renaming due to promotions (PR #178587)

[Teresa Johnson via cfe-commits]

https://github.com/teresajohnson commented:

I think the changes look good now, except I just noticed this won't work yet for distributed ThinLTO - I left a comment below. It just needs a straightforward change and a test. Then I will do some testing with it internally when I am back next week.

https://github.com/llvm/llvm-project/pull/178587