…n514

convert slice doc link to intra-doc links

Continuing where rust-lang#80189 stopped, with `core::slice`.

I had an issue with two dead links in my doc when implementing `Deref<Target = [T]>` for one of my type. This means that [`binary_search_by_key`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.binary_search_by_key) was available, but not [`sort_by_key`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.sort_by_key) even though it was linked in it's doc (same issue with [`as_ptr`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.as_ptr) and [`as_mut_pbr`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.as_mut_ptr)). It becomes available if I implement `DerefMut`, as it needs an `&mut self`.

<details>
  <summary>Code that will have dead links in its doc</summary>

```rust
pub struct A;
pub struct B;

impl std::ops::Deref for B{
    type Target = [A];

    fn deref(&self) -> &Self::Target {
        &A
    }
}
```
</details>

I removed the link to `sort_by_key` from `binary_search_by_key` doc as I didn't find a nice way to have a live link:
- `binary_search_by_key` is in `core`
- `sort_by_key` is in `alloc`
- intra-doc link `slice::sort_by_key` doesn't work, as `alloc` is not available when `core` is being build (the warning can't be ignored: ```error[E0710]: an unknown tool name found in scoped lint: `rustdoc::broken_intra_doc_links` ```)
- keeping the link as an anchor `#method.sort_by_key` meant a dead link
- an absolute link would work but doesn't feel right...

…n514

convert slice doc link to intra-doc links

Continuing where rust-lang#80189 stopped, with `core::slice`.

I had an issue with two dead links in my doc when implementing `Deref<Target = [T]>` for one of my type. This means that [`binary_search_by_key`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.binary_search_by_key) was available, but not [`sort_by_key`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.sort_by_key) even though it was linked in it's doc (same issue with [`as_ptr`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.as_ptr) and [`as_mut_pbr`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.as_mut_ptr)). It becomes available if I implement `DerefMut`, as it needs an `&mut self`.

<details>
  <summary>Code that will have dead links in its doc</summary>

```rust
pub struct A;
pub struct B;

impl std::ops::Deref for B{
    type Target = [A];

    fn deref(&self) -> &Self::Target {
        &A
    }
}
```
</details>

I removed the link to `sort_by_key` from `binary_search_by_key` doc as I didn't find a nice way to have a live link:
- `binary_search_by_key` is in `core`
- `sort_by_key` is in `alloc`
- intra-doc link `slice::sort_by_key` doesn't work, as `alloc` is not available when `core` is being build (the warning can't be ignored: ```error[E0710]: an unknown tool name found in scoped lint: `rustdoc::broken_intra_doc_links` ```)
- keeping the link as an anchor `#method.sort_by_key` meant a dead link
- an absolute link would work but doesn't feel right...

…n514

convert slice doc link to intra-doc links

Continuing where rust-lang#80189 stopped, with `core::slice`.

I had an issue with two dead links in my doc when implementing `Deref<Target = [T]>` for one of my type. This means that [`binary_search_by_key`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.binary_search_by_key) was available, but not [`sort_by_key`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.sort_by_key) even though it was linked in it's doc (same issue with [`as_ptr`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.as_ptr) and [`as_mut_pbr`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.as_mut_ptr)). It becomes available if I implement `DerefMut`, as it needs an `&mut self`.

<details>
  <summary>Code that will have dead links in its doc</summary>

```rust
pub struct A;
pub struct B;

impl std::ops::Deref for B{
    type Target = [A];

    fn deref(&self) -> &Self::Target {
        &A
    }
}
```
</details>

I removed the link to `sort_by_key` from `binary_search_by_key` doc as I didn't find a nice way to have a live link:
- `binary_search_by_key` is in `core`
- `sort_by_key` is in `alloc`
- intra-doc link `slice::sort_by_key` doesn't work, as `alloc` is not available when `core` is being build (the warning can't be ignored: ```error[E0710]: an unknown tool name found in scoped lint: `rustdoc::broken_intra_doc_links` ```)
- keeping the link as an anchor `#method.sort_by_key` meant a dead link
- an absolute link would work but doesn't feel right...

Rollup of 11 pull requests

Successful merges:

 - rust-lang#80385 (Clarify what `Cell::replace` returns)
 - rust-lang#82571 (Rustdoc Json: Add tests for Reexports, and improve jsondocck)
 - rust-lang#82860 (Add `-Z unpretty` flag for the THIR)
 - rust-lang#82950 (convert slice doc link to intra-doc links)
 - rust-lang#82965 (Add spirv extension handling in compiletest)
 - rust-lang#82966 (update MSYS2 link in README)
 - rust-lang#82979 (Fix "run" button position in error index)
 - rust-lang#83001 (Ignore Vim swap files)
 - rust-lang#83003 (rustdoc: tweak the search index format)
 - rust-lang#83013 (Adjust some `#[cfg]`s to take non-Unix non-Windows operating systems into account)
 - rust-lang#83018 (Reintroduce accidentally deleted assertions.)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup