[llvm-branch-commits] [clang] [Serialization] Code cleanups and polish 83233 (PR #83237)

[Ilya Biryukov via llvm-branch-commits]

ilya-biryukov wrote:

> So the meaning of stacked PR in this series of patches is pretty questionable. So I feel it is better to merge these PRs into a single commit so that it is easier to be cherry-picked and reverted in my experience

+100, this is definitely the right call.
... and I wish we had a better way to do stacked PRs, this is definitely one of the downgrades compared to Phabricator. 

https://github.com/llvm/llvm-project/pull/83237