…n stable

otherwise the test would build in the source root's `target` folder

it'll be easier to see and update the list: the other cmd args
can just be ignored

and make it the default for the compiler profile, as to prevent
unnecessarily checking out `src/llvm-project` with `"if-unchanged"`.

…ion`

because "Borrow" is the more idiomatic Rust term than "AddrOf".

…r-ozkan

use  `download-ci-llvm=true` in the default compiler config

rust-lang@1ca2708 made it so that the `src/llvm-project` submodule has to be checkout for `download-ci-llvm = "if-unchanged"` to know if the submodule has been changed, but that is not required, if the submodule hasn't been checkout it cannot have been modified.

~~This PR restore the previous behavior by only updating the submodule if it has already been checkout.~~

This PR makes `download-ci-llvm = true` check if CI llvm is available and make it the default for the compiler profile, as to prevent unnecessarily checking out `src/llvm-project` with `"if-unchanged"`.

r? ``@onur-ozkan``

Add test to build crates used by r-a on stable

r? ````@Kobzol````

I've opened other PRs for this one to work and they've landed already. I cherry-picked your commit, and added the last remaining pieces we needed I think.

…chenkov

Also emit `missing_docs` lint with `--test` to fulfil expectations

This PR removes the "test harness" suppression of the `missing_docs` lint to be able to fulfil `#[expect]` (expectations) as it is now "relevant".

I think the goal was to maybe avoid false-positive while linting on public items under `#[cfg(test)]` but with effective visibility we should no longer have any false-positive.

Another possibility would be to query the lint level and only emit the lint if it's of expect level, but that is even more hacky.

Fixes rust-lang#130021

…ieyouxu

run-make-support: Add llvm-pdbutil

Add llvm-pdbutil to run-make-support, so we can write better unit tests for PDB specific features.

r? `@jieyouxu`
`@rustbot` label: +O-windows

…ef, r=compiler-errors

Rename variant `AddrOfRegion` of `RegionVariableOrigin` to `BorrowRegion`

because "Borrow" is the more idiomatic Rust term than "AddrOf".

…ingjubilee

remove 'const' from 'Option::iter'

This is kind of pointless to be a `const fn` since you can't do anything with the iterator. It is also the only `const fn iter*` in the entire standard library. It probably got constified when `~const` traits got added everywhere, and then was forgotten to be de-constified when that was undone.

The rest of the const_option feature seems like it can reasonably be stabilized, but this one IMO should not be stabilized, and it's not worth creating a new tracking issue.

Cc rust-lang#67441

Fixes typo in wasm32-wasip2 doc comment