[clang-tools-extra] [Clang-Tidy] Fixed `cppcoreguidelines-init-variables` to handle ObjC for-in loops. (PR #191306)

[Dmitrii Kuragin via cfe-commits]

sstepashka wrote:

@unterumarmung @vbvictor is there anything else required to be done to get this PR checked in? Or, if I have to close the PR and it's not going to be accepted? I am open to the possibilities.

https://github.com/llvm/llvm-project/pull/191306