{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":"dcx.emit_err(UnescapeError::InvalidUnicodeEscape"}]}
            dcx.emit_err(UnescapeError::InvalidUnicodeEscape { span: err_span, surrogate: true })
        EscapeError::LoneSurrogateUnicodeEscape => {
        }