{"ast_node_type":"enum","tokens":[{"end":85,"kind":"keyword","start":0,"text":"let"}]}
        let option_enum = FamousDefs(&ctx.sema, module.krate()).core_option_Option();
        let missing_pats: Box<dyn Iterator<Item = _>> = if matches!(enum_def, ExtendedEnum::Enum { enum_: e, .. } if Some(e) == option_enum)