{"ast_node_type":"variable","tokens":[{"end":49,"kind":"keyword","start":0,"text":"let"}]}
        let expn_id = LocalExpnId::fresh_empty();
    fn collect(&mut self, fragment_kind: AstFragmentKind, kind: InvocationKind) -> AstFragment {
        if matches!(kind, InvocationKind::GlobDelegation { .. }) {