{"ast_node_type":"other","tokens":[{"end":14,"kind":"keyword","start":0,"text":"sess.dcx()"}]}
    sess.dcx()
fn span_dollar_dollar_or_metavar_in_the_lhs_err(sess: &Session, token: &Token) {
        .span_err(token.span, format!("unexpected token: {}", pprust::token_to_string(token)));