…ions

… dyn type

`./x dist` currently crashes when cross compiling. Add the fix described
by @catamorphism in rust-lang#110071.

Fixes rust-lang#110071

…r-projections, r=lcnr

silence mismatched types errors for implied projections

Currently, if a trait bound is not satisfied, then we suppress any errors for the trait's supertraits not being satisfied, but still report errors for super projections not being satisfied.

For example:
```rust
trait Super {
    type Assoc;
}
trait Sub: Super<Assoc = ()> {}
```
Before this PR, if `T: Sub` is not satisfied, then errors for `T: Super` are suppressed, but errors for `<T as Super>::Assoc == ()` are still shown. This PR makes it so that errors about super projections not being satisfied are also suppressed.

The errors are only suppressed if the span of the trait obligation matches the span of the super predicate obligation to avoid silencing error that are not related. This PR removes some differences between the spans of supertraits and super projections to make the suppression work correctly.

This PR fixes the majority of the diagnostics fallout when making `Thin` a supertrait of `Sized` (in a future PR).
cc rust-lang#120354 (comment)
cc `@lcnr`

Apply `EarlyBinder` only to `TraitRef` in `ImplTraitHeader`

Resolves rust-lang#121852

This PR
1. Moves `EarlyBinder` to `TraitRef` inside `ImplTraitHeader`,
2. Changes visibility of `coherence::builtin::check_trait` to `pub(super)` from `pub` as it seems not being re-exported from the `coherence` module.

Add proper cfgs for struct HirIdValidator used only with debug-assert

See rust-lang#122065 (comment).
I think it's due to rust-lang#121752.

Rust is a proper name: rust → Rust

I only went over the library where it might be user-visible -- I noticed this in the `time` docs.

Make `x t miri` respect `MIRI_TEMP`

(I don't want to override `TMPDIR`, as that might affect other things)

r? ``@RalfJung``

…affleLapkin

Make not finding core a fatal error

Similar to rust-lang#120472, this prevents terminal spam. In particular, it makes the good diagnostic visible when you try to use a target that's not installed.

…ler-errors

Cancel parsing ever made during recovery

Fixes rust-lang#122112

It would be nice if diagnostics from recovery were automatically cancelled... 🤔

…-bounds, r=oli-obk

Don't require specifying unrelated assoc types when trait alias is in `dyn` type

Object types must specify the associated types for all of the principal trait ref's supertraits. However, we weren't doing elaboration properly, so we incorrectly errored with erroneous suggestions to specify associated types that were unrelated to that principal trait ref. To fix this, use proper supertrait elaboration when expanding trait aliases in `conv_object_ty_poly_trait_ref`.

**NOTE**: Please use the ignore-whitespace option when reviewing. This only touches a handful of lines.

r? oli-obk or please feel free to reassign.

Fixes rust-lang#122118

…ld-belongs-to-unix, r=ChrisDenton

Fix `tidy --bless` on  ̶X̶e̶n̶i̶x̶ Windows

As reported in rust-lang#120628 (comment) the requested `tidy --bless` implementation didn't take into account the fact that earlier the linting code canonicalized things to use the OS path separator. This makes it so that the path separator is always rewritten back as '/', which should fix the variance there.

r? ``@ChrisDenton``

…ur-ozkan

Set `RustcDocs` to only run on host

`./x dist` currently crashes when cross compiling. Add the fix described by `@catamorphism` in rust-lang#110071.

Fixes rust-lang#110071