if let hir::GenericArg::Type(ty) = arg && params_in_repr.contains(i as u32) {
find_item_ty_spans(tcx, ty, needle, spans, seen_representable);
}
if let hir::GenericArg::Type(ty) = arg && params_in_repr.contains(i as u32) {
find_item_ty_spans(tcx, ty, needle, spans, seen_representable);
}