macro_rules! arena_types {
($macro:path) => (
$macro!([
- [] layout: rustc_target::abi::LayoutS<'tcx>,
+ [] layout: rustc_target::abi::LayoutS<rustc_target::abi::VariantIdx>,
[] fn_abi: rustc_target::abi::call::FnAbi<'tcx, rustc_middle::ty::Ty<'tcx>>,
// AdtDef are interned and compared by address
[decode] adt_def: rustc_middle::ty::AdtDefData,