[libcxx] [llvm] WIP: [libc++] Renaming instrumented versions of libraries (PR #72688)

[Oliver Stöneberg via llvm-commits]

firewave wrote:

I have no idea if there is packaging done in the LLVM repo but could this also leveraged for packaging? This might help with #59193.

Or adding logic so e.g. `stdlib=libc++ -fsanitizer=memory` might automatically pick up the proper library. Not sure if it would make sense, is desired or even possible.

https://github.com/llvm/llvm-project/pull/72688