[llvm-branch-commits] [llvm] [DirectX] Add slim debug support (PR #204459)

[Vladislav Dzhidzhoev via llvm-branch-commits]

dzhidzhoev wrote:

I have dropped Clang change for now.
`-dx-Zs` was renamed to `-dx-slim-debug` for clarity.

https://github.com/llvm/llvm-project/pull/204459