…iaskrgr

Rollup of 3 pull requests

Successful merges:

 - rust-lang#117869 ([rustdoc] Add highlighting for comments in items declaration)
 - rust-lang#118525 (coverage: Skip spans that can't be un-expanded back to the function body)
 - rust-lang#118574 (rustc_session: Address all `rustc::potential_query_instability` lints)

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

Rollup merge of rust-lang#117869 - GuillaumeGomez:comment-highlighting-item-decl, r=notriddle

[rustdoc] Add highlighting for comments in items declaration

Fixes rust-lang#117555.

So after the discussion in rust-lang#117643, the outcome was that having the comments in the item declaration at the same level (in term of color) as the rest of the code was actually a bit distracting and could be improved.

The current highlighting color for comments is "lighter" than the rest and I think it fits perfectly to improve the current situation. With this, we now have different "levels" which makes it easier to read and filter out what we want when reading the items declaration.

Here's a screenshot:

![image](https://github.com/rust-lang/rust/assets/3050060/dbd98029-e98b-4997-9a89-6b823eaac9a4)

r? `@notriddle`

Pkgsrc changes:
 * Adapt checksums and patches.

Upstream chnages:

Version 1.76.0 (2024-02-08)
==========================

Language
--------
- [Document Rust ABI compatibility between various types]
  (rust-lang/rust#115476)
- [Also: guarantee that char and u32 are ABI-compatible]
  (rust-lang/rust#118032)
- [Warn against ambiguous wide pointer comparisons]
  (rust-lang/rust#117758)

Compiler
--------
- [Lint pinned `#[must_use]` pointers (in particular, `Box<T>`
  where `T` is `#[must_use]`) in `unused_must_use`.]
  (rust-lang/rust#118054)
- [Soundness fix: fix computing the offset of an unsized field in
  a packed struct]
  (rust-lang/rust#118540)
- [Soundness fix: fix dynamic size/align computation logic for
  packed types with dyn Trait tail]
  (rust-lang/rust#118538)
- [Add `$message_type` field to distinguish json diagnostic outputs]
  (rust-lang/rust#115691)
- [Enable Rust to use the EHCont security feature of Windows]
  (rust-lang/rust#118013)
- [Add tier 3 {x86_64,i686}-win7-windows-msvc targets]
  (rust-lang/rust#118150)
- [Add tier 3 aarch64-apple-watchos target]
  (rust-lang/rust#119074)
- [Add tier 3 arm64e-apple-ios & arm64e-apple-darwin targets]
  (rust-lang/rust#115526)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

Libraries
---------
- [Add a column number to `dbg!()`]
  (rust-lang/rust#114962)
- [Add `std::hash::{DefaultHasher, RandomState}` exports]
  (rust-lang/rust#115694)
- [Fix rounding issue with exponents in fmt]
  (rust-lang/rust#116301)
- [Add T: ?Sized to `RwLockReadGuard` and `RwLockWriteGuard`'s Debug impls.]
  (rust-lang/rust#117138)
- [Windows: Allow `File::create` to work on hidden files]
  (rust-lang/rust#116438)

Stabilized APIs
---------------
- [`Arc::unwrap_or_clone`]
  (https://doc.rust-lang.org/stable/std/sync/struct.Arc.html#method.unwrap_or_clone)
- [`Rc::unwrap_or_clone`]
  (https://doc.rust-lang.org/stable/std/rc/struct.Rc.html#method.unwrap_or_clone)
- [`Result::inspect`]
  (https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.inspect)
- [`Result::inspect_err`]
  (https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.inspect_err)
- [`Option::inspect`]
  (https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.inspect)
- [`type_name_of_val`]
  (https://doc.rust-lang.org/stable/std/any/fn.type_name_of_val.html)
- [`std::hash::{DefaultHasher, RandomState}`]
  (https://doc.rust-lang.org/stable/std/hash/index.html#structs)
  These were previously available only through `std::collections::hash_map`.
- [`ptr::{from_ref, from_mut}`]
  (https://doc.rust-lang.org/stable/std/ptr/fn.from_ref.html)
- [`ptr::addr_eq`](https://doc.rust-lang.org/stable/std/ptr/fn.addr_eq.html)

Cargo
-----

See [Cargo release notes]
(https://github.com/rust-lang/cargo/blob/master/CHANGELOG.md#cargo-176-2024-02-08).

Rustdoc
-------
- [Don't merge cfg and doc(cfg) attributes for re-exports]
  (rust-lang/rust#113091)
- [rustdoc: allow resizing the sidebar / hiding the top bar]
  (rust-lang/rust#115660)
- [rustdoc-search: add support for traits and associated types]
  (rust-lang/rust#116085)
- [rustdoc: Add highlighting for comments in items declaration]
  (rust-lang/rust#117869)

Compatibility Notes
-------------------
- [Add allow-by-default lint for unit bindings]
  (rust-lang/rust#112380)
  This is expected to be upgraded to a warning by default in a future Rust
  release. Some macros emit bindings with type `()` with user-provided spans,
  which means that this lint will warn for user code.
- [Remove x86_64-sun-solaris target.]
  (rust-lang/rust#118091)
- [Remove asmjs-unknown-emscripten target]
  (rust-lang/rust#117338)
- [Report errors in jobserver inherited through environment variables]
  (rust-lang/rust#113730)
  This [may warn](rust-lang/rust#120515)
  on benign problems too.
- [Update the minimum external LLVM to 16.]
  (rust-lang/rust#117947)
- [Improve `print_tts`](rust-lang/rust#114571)
  This change can break some naive manual parsing of token trees
  in proc macro code which expect a particular structure after
  `.to_string()`, rather than just arbitrary Rust code.
- [Make `IMPLIED_BOUNDS_ENTAILMENT` into a hard error from a lint]
  (rust-lang/rust#117984)
- [Vec's allocation behavior was changed when collecting some iterators]
  (rust-lang/rust#110353)
  Allocation behavior is currently not specified, nevertheless
  changes can be surprising.
  See [`impl FromIterator for Vec`]
  (https://doc.rust-lang.org/nightly/std/vec/struct.Vec.html#impl-FromIterator%3CT%3E-for-Vec%3CT%3E)
  for more details.
- [Properly reject `default` on free const items]
  (rust-lang/rust#117818)