{"ast_node_type":"other","tokens":[{"end":100,"kind":"keyword","start":0,"text":"expr_collector.lower_type_ref_opt(type_ref.value,"}]}
        expr_collector.lower_type_ref_opt(type_ref.value, &mut ExprCollector::impl_trait_allocator);
    let type_ref =
    (expr_collector.store.finish(), expr_collector.source_map, type_ref)