[llvm-branch-commits] [clang] release/23.x: [git-clang-format] Don't format the line preceding a deletion (#215946) (PR #219855)

[Fangrui Song via llvm-branch-commits]

MaskRay wrote:

This PR cherry-picks #215946, which will fix an issue (once we change pr-code-format to use the new 23.1.x release) where pr-code-format incorrectly complains about chunks containing only code deletions. To resolve a merge conflict, commit f3e7c3b9b152 (#204336, --whole-file) is also included.

https://github.com/llvm/llvm-project/pull/219855