{"ast_node_type":"other","tokens":[{"end":30,"kind":"keyword","start":0,"text":"if"}]}
    if p.token == token::Eof {
fn check_no_eof(sess: &Session, p: &Parser<'_>, msg: &'static str) -> Option<ErrorGuaranteed> {
        let err_sp = p.token.span.shrink_to_hi();