[libclc] Wyles/update libclctests (PR #228681)

[Jared Wyles via cfe-commits]

jaredwy wrote:

This was found by #226088. I suspect nothing had run the build on CI for a while as it only triggers now and then, so when clang updated these tests never ran and were never updated. 

I am looking into how we can improve this. I have a few ideas ill bring up at a infra meeting.

https://github.com/llvm/llvm-project/pull/228681