In a scenario like

```
struct Type;

pub trait Trait {
    fn function(&mut self)
    where
        Self: Sized;
}

impl Trait for Type {
    fn function(&mut self) {}
}

fn main() {
    (&mut Type as &mut dyn Trait).function();
}
```

the problem is Sized, not the mutability of self. Thus don't emit the
"you need &T instead of &mut T" note, or the other way around, as all
it does is just invert the mutability of whatever was supplied.

Fixes rust-lang#103622.

Fix cases where the "invalid base prefix for number literal" error arises with
suffixes that look erroneously capitalized but which are in fact invalid.

…r=nnethercote

Refine when invalid prefix case error arises

Fix cases where the "invalid base prefix for number literal" error arises with suffixes that look erroneously capitalized but which are actually invalid.

Always evaluate vecs of subdiagnostics eagerly

See https://rust-lang.zulipchat.com/#narrow/stream/336883-i18n/topic/.23100717.20lists!/near/310186705 for context

…env-2, r=estebank

Highlight conflicting param-env candidates, again

Un-reverts rust-lang#98794 (i.e. reverts rust-lang#99290).

The previous time I attempted to land this PR, it was because of an incremental issue (rust-lang#99233). The repro instructions in the issue is no longer manifest the ICE -- I think it's because this ambiguity code was refactored (I think by ``@lcnr)`` to no longer store the ambiguities in the fulfillment error, but instead recompute them on the fly.

The main motivation for trying to re-land this is that it fixes rust-lang#105131 by highlighting the root-cause of the issue, which is conflicting param-env candidates:

```
error[E0283]: type annotations needed: cannot satisfy `Self: Gen<'source>`
   |
note: multiple `impl`s or `where` clauses satisfying `Self: Gen<'source>` found
  --> $DIR/conflicting-bounds.rs:3:1
   |
LL | pub trait Gen<'source> {
   | ^^^^^^^^^^^^^^^^^^^^^^
...
LL |         Self: for<'s> Gen<'s, Output = T>;
   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0283`.
```

Fixes rust-lang#105131.
Fixes (again) rust-lang#98786

Support #[track_caller] on async closures

Follow up on rust-lang#105180

r? ``@compiler-errors``
cc ``@cjgillot``

Illegal sized bounds: only suggest mutability change if needed

In a scenario like

```rust
struct Type;

pub trait Trait {
    fn function(&mut self)
    where
        Self: Sized;
}

impl Trait for Type {
    fn function(&mut self) {}
}

fn main() {
    (&mut Type as &mut dyn Trait).function();
}
```

the problem is Sized, not the mutability of self. Thus don't emit the "you need &T instead of &mut T" note, or the other way around, as all it does is just invert the mutability of whatever was supplied.

Fixes rust-lang#103622.

Add a test for rust-lang#92481

The test was copied ad-hoc from rust-lang#92481, but I can't get the test to pass, because of needing to get twice the same error on the last line of the source.

Closes rust-lang#92481

…davidtwco

Don't require owned data in `MaybeStorageLive`

Small improvement that avoids a clone. I don't expect this to have any noticeable perf effects, but better to have it than not to.

r? `@tmiasko`