[clang] [llvm] [OpenMP][clang] Register vtables on device for indirect calls runtime (PR #167011)

[via llvm-commits]

Jason-VanBeusekom wrote:

The above changes are not for this PR and are for https://github.com/llvm/llvm-project/pull/159856,

I removed the debug prints and fix the formatting for that PR, I also added them here, but had to do it through a force push. 

The commit cbe939d5cfc7fd248d2b15aa517df9f5738744ae has the runtime changes for this PR.

https://github.com/llvm/llvm-project/pull/167011