[llvm] [llvm][aarch64] Add support for the MS qualifiers __ptr32, __ptr64, _sptr, __uptr (PR #112793)

[Eli Friedman via llvm-commits]

efriedma-quic wrote:

(This is still on my radar, but I want to take a little more time to look at it.)

https://github.com/llvm/llvm-project/pull/112793