Function emit_direct_ptr_va_arg

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