[clang] [Clang] Introduce 'clang-nvlink-wrapper' to work around 'nvlink' (PR #96561)

[Joseph Huber via cfe-commits]

jhuber6 wrote:

> https://lab.llvm.org/buildbot/#/builders/174/builds/2130
> 
> Actually I noticed (and I think you already did as well), that there seems to be a test failure of nvwrapper.c after you fixed the build error. Just wanted to let you know in case you were not already aware.

Yep, it's caused by the program lookup not finding `nvlink` because I sometimes forget that not everything has CUDA installed.

https://github.com/llvm/llvm-project/pull/96561