{"ast_node_type":"function","tokens":[{"end":57,"kind":"keyword","start":0,"text":"pub(super)"}]}
    pub(super) fn is_path_start_item(&mut self) -> bool {
    /// When parsing a statement, would the start of a path be an item?
        self.is_kw_followed_by_ident(kw::Union) // no: `union::b`, yes: `union U { .. }`