…rns`

Remove unused args from functions

`#[instrument]` suppresses the unused arguments from a function, *and* suppresses unused methods too! This PR removes things which are only used via `#[instrument]` calls, and fixes some other errors (privacy?) that I will comment inline.

It's possible that some of these arguments were being passed in for the purposes of being instrumented, but I am unconvinced by most of them.

…gillot

No need to take `ImplTraitContext` by ref

We used to mutate `ImplTraitContext`, so it used to be `&mut` mutable ref. Then I think it used to have non-`Copy` data in it, so we took it by `&` ref. Now, none of that remains, so just copy it around.

make future diffs minimal

Remove myself from review rotation.

I've been unable to keep up with reviews. :(

Not sure if this helps much, considering there aren't many other libs reviewers on the rotation at the moment.

Hopefully I can add myself back again Soon™ when I can commit more time to reviewing.

…piler-errors

Make `min_exhaustive_patterns` match `exhaustive_patterns` better

Split off from rust-lang#120742.

There remained two edge cases where `min_exhaustive_patterns` wasn't behaving like `exhaustive_patterns`. This fixes them, and tests the feature in a bunch more cases. I essentially went through all uses of `exhaustive_patterns` to see which ones would be interesting to compare between the two features.

r? `@compiler-errors`

…mir, r=compiler-errors

Deduplicate `tcx.instance_mir(instance)` calls in `try_instance_mir`

Fix mir pass ICE in the presence of other errors

fixes rust-lang#120779

it is impossible to add a ui test for this, because it only reproduces in build-fail, but a test that also has errors in check-fail mode can't be made build-fail 🙃

I would have to add a run-make test or sth, which is overkill for such a tiny thing imo.

…, r=Mark-Simulacrum

Add release note for new ambiguous_wide_pointer_comparisons lint

I found out about this new lint in Rust because I had code allowing the Clippy lint. Clippy alerted me to the lint name change, and I went searching for the new lint's name in the release notes and was surprised there wasn't an item for it.

…trieb

Avoid ICE in drop recursion check in case of invalid drop impls

fixes rust-lang#120787