[clang] [clang] Fix LifetimeSafety build on 32-bit systems (PR #193440)

[Martin Storsjö via cfe-commits]

mstorsjo wrote:

I didn't quote quite all of the errors initially - see https://github.com/mstorsjo/llvm-mingw/actions/runs/24756233713/job/72441395130 for the full set of errors from the nightly build.

https://github.com/llvm/llvm-project/pull/193440