This commit modifies the `check_attr` pass so that attribute placement
on generic parameters is checked for validity.

Signed-off-by: David Wood <david@davidtw.co>

…ey method

Add missing punctuation.

Fixes rust-lang#79971

rustc_lint and rustc_lint_defs weren't switched because they're included
in the compiler book and so can't use intra-doc links.

Stabilize or_insert_with_key

Stabilizes the `or_insert_with_key` feature from rust-lang#71024. This allows inserting key-derived values when a `HashMap`/`BTreeMap` entry is vacant.

The difference between this and  `.or_insert_with(|| ... )` is that this provides a reference to the key to the closure after it is moved with `.entry(key_being_moved)`, avoiding the need to copy or clone the key.

…ttrs, r=lcnr

passes: prohibit invalid attrs on generic params

Fixes rust-lang#78957.

This PR modifies the `check_attr` pass so that attribute placement on generic parameters is checked for validity.

r? `@lcnr`

…k-Simulacrum

Add the "async" and "promise" doc aliases to `core::future::Future`

Adds the "async" and "promise" doc aliases to `core::future::Future`. This enables people who search for "async" or "promise" to find `Future`, which is Rust's core primitive for async programming. Thanks!

Switch some links in compiler/ to intra-doc links

Add `&mut` as an alias for 'reference' primitive

Closes rust-lang#46075.

or_patterns: implement :pat edition-specific behavior

cc rust-lang#54883 `@joshtriplett`

This PR implements the edition-specific behavior of `:pat` wrt or-patterns, as determined by the crater runs and T-lang consensus in rust-lang#54883 (comment).

I believe this can unblock stabilization of or_patterns.

r? `@petrochenkov`

docs: Edit rustc_ast::token::Token

Add missing punctuation.

…tebank

Suppress `CONST_ITEM_MUTATION` lint if a dereference occurs anywhere

Fixes rust-lang#79971

…s-schievink

Fix typo

…lcnr

Make BoundRegion have a kind of BoungRegionKind

Split from rust-lang#76814

Also includes making `replace_escaping_bound_vars` only return `T`

Going to r? `@lcnr`
Feel free to reassign