[clang] [clang-format] Fix OverEmptyLines aligning trailing comments across block boundaries (PR #208324)

[via cfe-commits]

earnol wrote:

@owenca: I've removed `FormatStyle::LK_Proto` test. Also edited a description to make it more `OverEmptyLines` centered.
Is there anything else?

PS: Any comments regarding the issue: https://github.com/llvm/llvm-project/issues/211557 i have filed? It would be nice to have any input in it from maintainers.

https://github.com/llvm/llvm-project/pull/208324