[clang] [llvm] [WIP][OpenMP] Remove dependency on `libffi` from offloading runtime (PR #91264)

[Joseph Huber via cfe-commits]

jhuber6 wrote:

> Hmm, hard to tell, need to debug it.

Somehow when I print it in the runtime it shows up as garbage, but the actual region seems to get correct values. There shouldn't be anything in-between the arguments I'm printing and the kernel launch however so I'm stumped.

https://github.com/llvm/llvm-project/pull/91264