[llvm] [DWARFYAML] Implement debug_names support (PR #79666)

[Felipe de Azevedo Piovezan via llvm-commits]

https://github.com/felipepiovezan commented:

Addressed review comments

>The testing seems a bit light to me. Are all new code paths tested? 

W.r.t. to the parsing and emitting, yes, all code paths should be exercised, with the exception of the error paths.

> If nothing else, I don't see any testing of the error cases.

I will add a few in the next commit

https://github.com/llvm/llvm-project/pull/79666