Merge rust-lang#10250

10250: internal: Improve call_hierarchy and incoming/outgoing_calls r=Veykril a=Veykril

bors r+

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>

Merge rust-lang#10215

10215: Use correct file syntax node for decl_access computation in find_all_refs r=Veykril a=Veykril

Defs and refs of locals only ever life in one file, this isn't true for fields though.
Fixes rust-lang#10201

bors r+

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>

Merge rust-lang#10161

10161: Don't dump `DefMap`s to build the panic context r=matklad a=matklad

internal: remove accidental code re-use
FragmentKind played two roles:

* entry point to the parser
* syntactic category of a macro call

These are different use-cases, and warrant different types. For example,
macro can't expand to visibility, but we have such fragment today.

This PR introduces `ExpandsTo` enum to separate this two use-cases.

I suspect we might further split `FragmentKind` into `$x:specifier` enum
specific to MBE, and a general parser entry point, but that's for
another PR!

bors r+
🤖

Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>

Merge rust-lang#10074

10074: internal: improve compile times a bit r=matklad a=matklad

bors r+
🤖

Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>

Merge rust-lang#9989

9989: Fix two more “a”/“an” typos (this time the other way) r=lnicola a=steffahn

Follow-up to rust-lang#9987

you guys are still merging these fast 😅

_this time I thought – for sure – that I’d get this commit into rust-lang#9987 before it’s merged…_

Co-authored-by: Frank Steffahn <frank.steffahn@stu.uni-kiel.de>

Merge rust-lang#9905

9905: internal: optimize compile time r=matklad a=matklad

bors r+
🤖

Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>

Merge rust-lang#9814

9814: Generate default impl when converting `#[derive(Debug)]` to manual impl r=yoshuawuyts a=yoshuawuyts

This patch makes it so when you convert `#[derive(Debug)]` to a manual impl, a default body is provided that's equivalent to the original output of `#[derive(Debug)]`. This should make it drastically easier to write custom `Debug` impls, especially when all you want to do is quickly omit a single field which is `!Debug`.

This is implemented for enums, record structs, tuple structs, empty structs - and it sets us up to implement variations on this in the future for other traits (like `PartialEq` and `Hash`).

Thanks!

## Codegen diff
This is the difference in codegen for record structs with this patch:
```diff
struct Foo {
    bar: String,
}

impl fmt::Debug for Foo {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        todo!();
+        f.debug_struct("Foo").field("bar", &self.bar).finish()
    }
}
```

Co-authored-by: Irina Shestak <shestak.irina@gmail.com>
Co-authored-by: Yoshua Wuyts <yoshuawuyts@gmail.com>
Co-authored-by: Yoshua Wuyts <yoshuawuyts+github@gmail.com>

Merge rust-lang#9750

9750: Link “DST” to its definition r=lnicola a=gthb

Being new to Rust I wasn't familiar with this acronym and found it hard to guess (the context of syntax trees biased me to reading it as a D-something Syntax Tree and trying to guess what the D was), hard to google (in retrospect googling "rust dst" does the job, but I thought it was an abstract structure thing, not Rust-specific), and hard to Github-search, because `dst` is commonly short for “destination” in code.

Alternatively `<abbr title="dynamically sized type">DST</abbr>` would be about as helpful.

Co-authored-by: Gunnlaugur Thor Briem <gunnlaugur@gmail.com>

Merge rust-lang#9691

9691: fix: Keep catch-all arm in fill_match_arms if it has a non-empty expression r=Veykril a=Veykril

Fixes rust-lang#4165
bors r+

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>

Merge rust-lang#9619

9619: Support GATs for associated type arg parsing r=Veykril a=Veykril

Fixes rust-lang#9602

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>