[llvm] [NFC][AlwaysInliner] Reduce AlwaysInliner memory consumption. (PR #96958)

[Arthur Eubanks via llvm-commits]

aeubanks wrote:

can you elaborate in the description on "Refactored AlwaysInliner to remove some of inlined functions earlier" and how it fixes the issue?

https://github.com/llvm/llvm-project/pull/96958