{"ast_node_type":"variable","tokens":[{"end":42,"kind":"keyword","start":0,"text":"let"}]}
                let suffixes = match ext {
                let AssocItemKind::DelegationMac(deleg) = &item.kind else { unreachable!() };
                    SyntaxExtensionKind::GlobDelegation(expander) => match expander.expand(self.cx)