[llvm] [Inliner] Put inline history into IR as !inline_history metadata (PR #190876)

[Arthur Eubanks via llvm-commits]

aeubanks wrote:

I'm so sorry, I keep missing comments on PRs

there were some followup changes that seem like that would potentially fix those issues, like https://github.com/llvm/llvm-project/pull/191729. if there are still issues then yes we can revert this change (would also require reverting #191242). error messages would be helpful

https://github.com/llvm/llvm-project/pull/190876