[llvm] [SPIRV] Migrate NSDI emission from a machine pass to DebugHandlerBase (PR #191212)

[Dmitry Sidorov via llvm-commits]

https://github.com/MrSidims commented:

the approach is LGTM, I have minor questions/recommendations that can also be left as TODOs

https://github.com/llvm/llvm-project/pull/191212