[llvm] [OpenMPOpt][Attributor] Avoid eager deglobalization AA registration (PR #198710)

[ZT Qin via llvm-commits]

nolongerwait wrote:

The latest check failure appears to be due to the new test introduced by 564d69a8dec3183ebd78a779efdd8903bbe89f68 on main, rather than this patch itself.

I rebased this PR locally onto the latest main and the relevant test passes there. I can push the rebase after review to refresh the CI results.

https://github.com/llvm/llvm-project/pull/198710