{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"if"}]}
                if existing_diagnostics.len() == diagnostics.len()
            if let Some((old_gen, existing_diagnostics)) = target.get_mut(&file_id) {
                    && iter_eq_by(&diagnostics, &*existing_diagnostics, |new, existing| {