[clang] [clang-tools-extra] [clangd] Add support to rename Objective-C selectors (PR #78872)

[kadir çetinkaya via cfe-commits]

kadircet wrote:

Hi @ahoppen ! Thanks a lot for the patch, but @DavidGoldman has also been working on this in https://github.com/llvm/llvm-project/pull/76466 and I'd rather follow up on that as we've already put in quite a lot of effort to get it into some decent shape and the functionality propsed by both of these approaches seem to be ~same (even the approaches), unless I am missing something.

https://github.com/llvm/llvm-project/pull/78872