…segment

Tweak some error wording

Remove methods `Attribute::span` and `MetaItem::span` duplicating public fields

…nvocation

This commit adds a regression test for rust-lang#55809 which checks that a
overflow does not occur when evaluating a requirement for async
functions and `&mut` arguments in some specific circumstances.

Rewrite the SelfCtor early and use the replacement Def when
calculating the path_segs.

Note that this also changes which def is seen by the code that
computes user_self_ty and is_alias_variant_ctor; I don't see a
immediate issue with that, but I'm not 100% clear on the
implications.

Fixes rust-lang#57924

… r=sanxiyn

Update compiler_builtins to 0.1.7 to get windows/arm fix

Do not accidentally treat multi-segment meta-items as single-segment

Fixes rust-lang#55168 and many other regressions from rust-lang#50030

Basically, attributes like `#[any::prefix::foo]` were commonly interpreted as `#[foo]` due to `name()` successfully returning the last segment (this applies to nested things as well `#[attr(any::prefix::foo)]`).

Fix generic argument lookup for Self

Rewrite the SelfCtor early and use the replacement Def when
calculating the path_segs.

Note that this also changes which def is seen by the code that
computes user_self_ty and is_alias_variant_ctor; I don't see a
immediate issue with that, but I'm not 100% clear on the
implications.

Fixes rust-lang#57924

r? @eddyb

resolve: Account for new importable entities

Fixes the ICE encountered in rust-lang#58837
r? @Centril

…chton

Consistent naming for duration_float methods and additional f32 methods

`duration_float` tracking issue: rust-lang#54361

New list of methods:
- `as_secs_f64(&self) -> f64`
- `as_secs_f32(&self) -> f32`
- `from_secs_f64(secs: f64) -> Duration`
- `from_secs_f32(secs: f32) -> Duration`
- `mul_f64(self, rhs: f64) -> Duration`
- `mul_f32(self, rhs: f32) -> Duration`
- `div_f64(self, rhs: f64) -> Duration`
- `div_f32(self, rhs: f64) -> Duration`
- `div_duration_f64(self, rhs: Duration) -> f64`
- `div_duration_f32(self, rhs: Duration) -> f32`

With [`num_traits::Float`](https://docs.rs/num-traits/0.2.6/num_traits/float/trait.Float.html) we could've reduced number of methods by factor of two, but unfortunately it's not part of `std`.

Be more discerning on when to attempt suggesting a comma in a macro invocation

Fix rust-lang#58796.

Suggest return lifetime when there's only one named lifetime

Fix rust-lang#29094.

Make std time tests more robust for platform differences

Previously, `time::tests::since_epoch` and `time::tests::system_time_math` would fail if the platform represents a SystemTime as unix epoch + `u64` nanoseconds.

r? @sfackler

[wg-async-await] Add regression test for rust-lang#55809.

Fixes rust-lang#55809.

This PR adds a regression test for rust-lang#55809 which checks that a
overflow does not occur when evaluating a requirement for async
functions and `&mut` arguments in some specific circumstances.