[clang] [clang][driver] add pointer qualifier to auto type (PR #91874)

[Youngsuk Kim via cfe-commits]

https://github.com/JOE1994 requested changes to this pull request.

The 3 updated items seem to be iterators and not pointers.

I think [the coding standard item](https://llvm.org/docs/CodingStandards.html#beware-unnecessary-copies-with-auto) doesn't apply here.

https://github.com/llvm/llvm-project/pull/91874