fn emit_direct_ptr_va_arg<'ll, 'tcx>( bx: &mut GenericBuilder<'_, 'll, CodegenCx<'ll, 'tcx>>, list: OperandRef<'tcx, &'ll Value>, size: Size, align: Align, slot_size: Align, allow_higher_align: bool, ) -> (&'ll Value, Align)