Auto merge of #114790 - taiki-e:asm-maybe-uninit, r=Amanieu

Allow MaybeUninit in input and output of inline assembly

**Motivation:**

As part of the work to remove UBs from crossbeam's AtomicCell, I'm writing a library to implement atomic operations on MaybeUnint using inline assembly ([atomic-maybe-uninit](https://github.com/taiki-e/atomic-maybe-uninit), https://github.com/crossbeam-rs/crossbeam/pull/1015).

However, currently, MaybeUnint cannot be used in input&output of inline assembly, so when processing MaybeUninit, values must be [passed through memory](https://github.com/taiki-e/atomic-maybe-uninit/blob/main/src/arch/aarch64.rs#L121-L122). It is inefficient and microbenchmarks have [actually shown significant performance degradation](https://github.com/crossbeam-rs/crossbeam/pull/1015#issuecomment-1676549870).

It would be nice if we could allow MaybeUninit in input and output of inline assembly.

---

This PR changed the type check in rustc_hir_analysis to allow `MaybeUnint<int | float | ptr | fn ptr | simd vector>` in input and output of inline assembly and added a simple test.

To be honest, I'm not sure that this is the correct way to do it, because this is like doing transmute to integers/floats/etc from MaybeUninit on the compiler side. EDIT: [this seems fine](https://rust-lang.zulipchat.com/#narrow/stream/216763-project-inline-asm/topic/MaybeUninit.20in.20asm!/near/384662900)

r? `@Amanieu`
cc `@thomcc` (because you [had previously proposed this](https://rust-lang.zulipchat.com/#narrow/stream/216763-project-inline-asm/topic/MaybeUninit.20in.20asm!))

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