[clang] [clang][NFC] Format clang/lib/Sema/Sema.cpp (PR #83974)

[Chuanqi Xu via cfe-commits]

ChuanqiXu9 wrote:

Oh, I found it here: https://llvm.org/docs/CodingStandards.html#introduction

> Our long term goal is for the entire codebase to follow the convention, but we explicitly do not want patches that do large-scale reformatting of existing code.

https://github.com/llvm/llvm-project/pull/83974