{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"///"}]}
    /// compare against another `DefId`, since `is_diagnostic_item` is cheaper.
    /// Obtain the given diagnostic item's `DefId`. Use `is_diagnostic_item` if you just want to
    pub fn get_diagnostic_item(self, name: Symbol) -> Option<DefId> {