…=WaffleLapkin

[ACP 362] genericize `ptr::from_raw_parts`

This implements rust-lang/libs-team#362

As such, it can partially undo rust-lang#124795 , letting `slice_from_raw_parts` just call `from_raw_parts` again without re-introducing the unnecessary cast to MIR.

By doing this it also removes a spurious cast from `str::from_raw_parts`.  And I think it does a good job of showing the value of the ACP, since the only thing that needed new turbofishing because of this is inside `ptr::null(_mut)`, but only because `ptr::without_provenance(_mut)` doesn't support pointers to extern types, which it absolutely could (without even changing the implementation).

Rollup of 7 pull requests

Successful merges:

 - rust-lang#125653 (Migrate `run-make/const-prop-lint` to `rmake.rs`)
 - rust-lang#125662 (Rewrite `fpic`, `simple-dylib` and `issue-37893` `run-make` tests in `rmake.rs` or ui test format)
 - rust-lang#125699 (Streamline `x fmt` and improve its output)
 - rust-lang#125701 ([ACP 362] genericize `ptr::from_raw_parts`)
 - rust-lang#125723 (Migrate `run-make/crate-data-smoke` to `rmake.rs`)
 - rust-lang#125733 (Add lang items for `AsyncFn*`, `Future`, `AsyncFnKindHelper`'s associated types)
 - rust-lang#125734 (ast: Revert a breaking attribute visiting order change)

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

Rollup merge of rust-lang#125701 - scottmcm:generic-from-raw-parts, r=WaffleLapkin

[ACP 362] genericize `ptr::from_raw_parts`

This implements rust-lang/libs-team#362

As such, it can partially undo rust-lang#124795 , letting `slice_from_raw_parts` just call `from_raw_parts` again without re-introducing the unnecessary cast to MIR.

By doing this it also removes a spurious cast from `str::from_raw_parts`.  And I think it does a good job of showing the value of the ACP, since the only thing that needed new turbofishing because of this is inside `ptr::null(_mut)`, but only because `ptr::without_provenance(_mut)` doesn't support pointers to extern types, which it absolutely could (without even changing the implementation).