[llvm] [ADT] Always use 32-bit size type for SmallVector with 16-bit elements (PR #95536)

[Nikita Popov via llvm-commits]

https://github.com/nikic approved this pull request.

LGTM. To the best of my knowledge, the original motivation for this was specifically about the char/byte case, to support large binary blobs. If this is needed for other types, then we should have a mechanism to control it.

https://github.com/llvm/llvm-project/pull/95536