…r=JohnTitor

Stabilize the const_socketaddr feature

Stabilizes `#![feature(const_socketaddr)]`. Tracking issue: rust-lang#82485
Closes rust-lang#82485

This has been unstably const for over a year now. And the code change simplifying the constness of the `new` constructors has been in stable Rust since 1.64 (a bit over a full release cycle). I'm not aware of any blockers to this stabilization.

…=cjgillot

Make `unsizing_params_for_adt` into a query

Addresses a FIXME in confirmation.

r? `@ghost`

…vm_available, r=albertlarsan68

Revisit fix_is_ci_llvm_available logic

Fixes rust-lang#107225
Now `supported_platforms` has a knowledge whether llvm asserts artifacts are available for particular host triple.

`@jyn514` `@albertlarsan68` PTAL

…losure-arg-needs-borrow, r=oli-obk

Correct suggestions for closure arguments that need a borrow

Fixes rust-lang#107301 by dealing with binders correctly
Fixes another issue where we were suggesting adding just `&` when we expected `&mut _` in a closure arg

solver comments + remove `TyCtxt::evaluate_goal`

from the `RustcContributor::explore` session yesterday.

This also removes `TyCtxt::evaluate_goal` because to canonicalize you have to use an `InferCtxt` anyways at which point we should just always get people to use `evaluate_root_goal`.

r? `@spastorino`

…san68

Fix wording from `rustbuild` to `bootstrap`

Fixes rust-lang#107230