19821ad234
Do not accept the following
```rust
macro_rules! lexes {($($_:tt)*) => {}}
lexes!(🐛"foo");
```
Before, invalid emoji identifiers were gated during parsing instead of lexing in all cases, but this didn't account for macro expansion of literal prefixes.
Fix #123696.
|
||
|---|---|---|
| .. | ||
| unescape | ||
| cursor.rs | ||
| lib.rs | ||
| tests.rs | ||
| unescape.rs | ||