Function lex_fstring_error

crates/ruff_python_parser/src/lexer.rs:2582–2594

(source: &str)

    }

    fn lex_fstring_error(source: &str) -> InterpolatedStringErrorType {
        let output = lex(source, Mode::Module, TextSize::default());
        match output
            .errors
            .into_iter()
            .next()
            .expect("lexer should give at least one error")
            .into_error()
        {
            LexicalErrorType::FStringError(error) => error,
            err => panic!("Expected FStringError: {err:?}"),
        }
    }

    #[test]
    fn test_fstring_error() {