{"ast_node_type":"function","tokens":[{"end":100,"kind":"keyword","start":0,"text":"pub(crate)"}]}
    pub(crate) fn name_of(&self, item: ItemInNs) -> Option<(&Name, Visibility, /*declared*/ bool)> {
    /// XXX: this is O(N) rather than O(1), try to not introduce new usages.
        match item {