Merge #9735
9735: Add assist to sort members alphabetically. r=matklad a=vsrs
Supports traits, impls, structs, unions and enums (including inner struct variants). Does not support modules yet.
```rust
en┃um Animal {
Dog(String, f64),
Cat { weight: f64, name: String },
}
```
->
```rust
enum Animal {
Cat { weight: f64, name: String },
Dog(String, f64),
}
```
---
```rust
enum Animal {
Dog(String, f64),
Cat {┃ weight: f64, name: String },
}
```
->
```rust
enum Animal {
Dog(String, f64),
Cat { name: String, weight: f64 },
}
```
---
More samples in docs 0b7835619a/crates/ide_assists/src/handlers/sort_items.rs (L12-L83).
Relates #6110
Co-authored-by: vsrs <vit@conrlab.com>
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