{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"iter::repeat(source_info).take(CoroutineArgs::RESERVED_VARIANTS).collect();"}]}
                    iter::repeat(source_info).take(CoroutineArgs::RESERVED_VARIANTS).collect();
                let variant_source_info: IndexVec<VariantIdx, SourceInfo> =
                let proxy_layout = CoroutineLayout {