68359e2284
Fix invalid silencing of parsing error
Given
```rust
macro_rules! a {
( ) => {
impl<'b> c for d {
e::<f'g>
}
};
}
```
ensure an error is emitted.
Fix #123079.
|
||
|---|---|---|
| .. | ||
| lexer | ||
| parser | ||
| errors.rs | ||
| lib.rs | ||
| validate_attr.rs | ||