[llvm] [DebugInfo][TailCallElim] Use ret DILocation for return value selects (PR #134825)

[Shan Huang via llvm-commits]

https://github.com/Apochens approved this pull request.

I see that you have found a lot of cases where the missing debug locations are caused by newly created instructions that are not assigned any location. That's great!

https://github.com/llvm/llvm-project/pull/134825