Auto merge of #150582 - jhpratt:rollup-3mal3wc, r=jhpratt

Rollup of 3 pull requests

Successful merges:

 - rust-lang/rust#150073 (Make `asm_experimental_arch` work in `allow_internal_unstable` macros)
 - rust-lang/rust#150445 (resolve: Preserve binding scopes in ambiguity errors)
 - rust-lang/rust#150580 (Document `panic!` in `Iterator::last` for rust-lang/rust#149707)

r? `@ghost`
`@rustbot` modify labels: rollup