The clippy lint catches some things that rustc's equivalent builtin lint
does not, for example rust-lang#146940:

    error: function cannot return without recursing
        --> library/std/src/path.rs:3428:5
         |
    3428 | /     fn eq(&self, other: &String) -> bool {
    3429 | |         self == &*other
    3430 | |     }
         | |_____^
         |
    note: recursive call site
        --> library/std/src/path.rs:3429:9
         |
    3429 |         self == &*other
         |         ^^^^^^^^^^^^^^^
         = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unconditional_recursion
         = note: requested on the command line with `-D clippy::unconditional-recursion`

Co-authored-by: Ralf Jung <[email protected]>

…r=petrochenkov

Resolve: (Ref)Cell wrappers to deny mutation during spec resolution.

Introduces wrappers around `Cell` and `RefCell` that only allow mutation when we are not in speculative resolution. This is preparatory work for rust-lang#145108.

It would allow us to make `ImportData` and `ModuleData` sync and send safe.

r? `@petrochenkov`

…henkov

Add general arm-linux.md platform doc.

Adds a new page that covers all 32-bit Arm Linux systems. This means that we can reduce the amount of information required in the target specific pages to just the Tier level, the maintainer, and any specific details for that target.

I have no changed those pages yet, though. Let's start with this.

…alfJung

const_caller_location to use real Span instead of `DUMMY_SP`

Closes: rust-lang#146990

Add `clippy::unconditional_recursion` to `./x clippy ci`

The clippy lint catches some things that rustc's equivalent builtin lint
does not, for example rust-lang#146940:

    error: function cannot return without recursing
        --> library/std/src/path.rs:3428:5
         |
    3428 | /     fn eq(&self, other: &String) -> bool {
    3429 | |         self == &*other
    3430 | |     }
         | |_____^
         |
    note: recursive call site
        --> library/std/src/path.rs:3429:9
         |
    3429 |         self == &*other
         |         ^^^^^^^^^^^^^^^
         = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unconditional_recursion
         = note: requested on the command line with `-D clippy::unconditional-recursion`

…or, r=lolbinarycat

Add new `tyalias` intra-doc link disambiguator

Fixes rust-lang#146855.

Alternative to rust-lang#146866.

This adds support for a new disambiguator: `tyalias`. I think it's common enough to have type aliases nowaday, so no reason to not be able to have a disambiguator for them.

cc `@fmease`
r? lolbinarycat

…youxu

Rename verbosity functions in bootstrap

Just a small cleanup, these function names have been bothering me for a while. I realized that we can delete some of them outright, rather than just renaming them.

r? `@jieyouxu`

…meGomez

rustdoc: put the toolbar on the all item index

std: fix warning in VEXos stdio module

Fixes building `std` on the `armv7a-vex-v5` target due to an unnecessarily mutable argument in `Stdin`.

This was a stupid oversight on my part towards the end of rust-lang#145973's review process. Missed a warning and had a bad bootstrap config that didn't tell me about it when testing changes.