syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"record(DataTypeKind::Coroutine,"}]}
source_snippet:             record(DataTypeKind::Coroutine, false, opt_discr_size, variant_infos);
context_before:                 variant_info_for_coroutine(cx, layout, def_id, args);
context_after:         }