[clang-tools-extra] [clangd] forward clang-tidy's readability-identifier-naming fix to textDocument/rename (PR #78454)

[Tom Praschan via cfe-commits]

tom-anders wrote:

> Looks pretty good!
> 
> Are there further changes you're planning to make, or is this ready to graduate from "Draft" status?

Ah, thanks about the heads up, forgot about this 

https://github.com/llvm/llvm-project/pull/78454