A4-Tacks d2cc89ffc7
Add macro segment completion
Example
---
```rust
macro_rules! foo {
    ($($x:$0)*) => ();
}
```

**Completion items**:

```text
ba block
ba expr
ba expr_2021
ba ident
ba item
ba lifetime
ba literal
ba meta
ba pat
ba pat_param
ba path
ba stmt
ba tt
ba ty
ba vis
```
2025-12-27 05:04:18 +08:00
..
2025-12-27 05:04:18 +08:00