[llvm] Add code to handle #debug_values in SROA. (PR #94068)

[Stephen Tozer via llvm-commits]

https://github.com/SLTozer commented:

Apologies, just noticed that the comment about adding a unit test hasn't been addressed yet. @adrian-prantl I think we don't have any unit tests that cover the existing parallels for the functions added in this commit, but I'd also accept a principled position against submitting code with no test coverage - do you think the lack-of a unit test is a blocker for this commit?

https://github.com/llvm/llvm-project/pull/94068