Co-authored-by: Georg Semmler <github@weiznich.de>

…, r=lcnr

Normalize struct tail properly for `dyn` ptr-to-ptr casting in new solver

Realized that the new solver didn't handle ptr-to-ptr casting correctly.

r? lcnr

Built on rust-lang#128694

…mpl, r=lcnr

Store `do_not_recommend`-ness in impl header

Alternative to rust-lang#128674

It's less flexible, but also less invasive. Hopefully it's also performant. I'd recommend we think separately about the design for how to gate arbitrary diagnostic attributes moving forward.

…nur-ozkan

bootstrap: clear miri ui-test deps when miri sysroot gets rebuilt

Second attempt after rust-lang#128683: seems like it's not the compiler changing that we care about, but the sysroot changing.

I did some local testing with sysroot rebuilds and it works fine for at least those cases I checked.

r? ``@onur-ozkan``

…-file, r=jieyouxu

Remove unused script from run-make tests

Its last usage was removed in rust-lang#128636.

Tracking issue: rust-lang#121876

r? jieyouxu

…=Noratrieb

Replace `std::fmt:FormatterFn` with `std::fmt::from_fn`

Modelled after the suggestion made in [this](rust-lang#117729 (comment)) comment, this should bring this functionality in line with the existing `array::from_fn` & `iter::from_fn`