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

[Jonas Devlieghere via llvm-branch-commits]

JDevlieghere wrote:

This also broke the Darwin LLDB bots:

https://ci.swift.org/view/all/job/llvm.org/view/LLDB/job/lldb-cmake/
https://ci.swift.org/view/all/job/llvm.org/view/LLDB/job/as-lldb-cmake/

Given they've been red for 15h and broke various other bots, can you please revert while you investigate? 

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