{"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"EscapeError::LoneSurrogateUnicodeEscape"}]}
        EscapeError::LoneSurrogateUnicodeEscape => {
    Some(match error {
            dcx.emit_err(UnescapeError::InvalidUnicodeEscape { span: err_span, surrogate: true })