Auto merge of #130195 - folkertdev:naked-asm-outside-naked-fn, r=Amanieu

disallow `naked_asm!` outside of `#[naked]` functions

tracking issue: rust-lang/rust#90957
parent PR: rust-lang/rust#128651

I split this out from the parent PR because it's self-contained and because the analysis has to search through all functions and there might be performance regressions.

r? `@Amanieu`

Author: bors