[clang] [clang-format] Do not update cursor pos if no includes replacement (PR #77456)

[via cfe-commits]

NorthBlue333 wrote:

Sure, that was was not very clear from my side I agree.

Yes, your implementation is cleaner (I don't know why I did not do that from the beginning, I think I was struggling to fix the other tests and ended up with something more complicated than necessary).

I have squashed the commits in only one.
Thanks for your time!

https://github.com/llvm/llvm-project/pull/77456