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

[Nathan Ridge via cfe-commits]

HighCommander4 wrote:

Something else I noticed while trying out the patch locally: before the patch, the description of the quick fix in the editor is "change 'foo' to 'Foo'", i.e. a description of what the code action will do.

After the patch, the description of the quick fix is now "invalid case style for function 'foo'", i.e. it describes the problem, not the fix.

We should keep the description of the code action the same, i.e. describing the fix.

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