…issing

See rust-lang#91867 for more information.

…, r=yaahc

add BinaryHeap::try_reserve and BinaryHeap::try_reserve_exact

`try_reserve` of many collections were stablized in rust-lang#87993 in 1.57.0. Add `try_reserve` for the rest collections such as `BinaryHeap` should be not controversial.

… r=davidtwco

Suggest to specify a target triple when lang item is missing

It is very common for newbies to embedded to hit this confusing error when forgetting to specify the target.
Source: me googling this error many times.

## Possible changes
* We could possibly restrict the note+help to only be included on eh_personality lang item if that helped reduce false positives, but its also possible doing so would just increase false negatives
* Open to any suggestions on rewriting the messages
* We could possibly remove the `.cargo/config` alternative to avoid the message getting too noisy but I think its valuable to have as its the correct approach for most embedded projects so that `cargo build` just works.

r? rust-lang/diagnostics

…=yaahc

Make `MaybeUninit::zeroed` `const`

Tracking issue: rust-lang#91850

```rust
// core::mem
impl<T> MaybeUninit<T> {
    pub const fn zeroed() -> MaybeUninit<T>;
}
```

…g, r=Aaron1011

Use try_normalize_erasing_regions in RevealAllVisitor

Fixes rust-lang#91745

Thanks to ``@Aaron1011`` for [pointing out the problem](rust-lang#91745 (comment)).

r? ``@Aaron1011``

…val, r=oli-obk

Remove `in_band_lifetimes` from `rustc_const_eval`

See rust-lang#91867 for more information.

…le, r=dtolnay

Fix HashStable implementation on InferTy

HashStable impl forgot to hash the discriminant.

Fixes rust-lang#91807

Remove `in_band_lifetimes` from `rustc_hir`

rust-lang#91867