[clang] [lld] [llvm] Add debug options to clang-linker-wrapper (PR #101008)

[Joseph Huber via cfe-commits]

https://github.com/jhuber6 commented:

`lld` changes need to be separate, forwarding `-mllvm` is https://github.com/llvm/llvm-project/pull/100424 but I forgot to merge it so I'll do that.

https://github.com/llvm/llvm-project/pull/101008