Function emit_ptr_va_arg

fn emit_ptr_va_arg<'ll, 'tcx>(
    bx: &mut GenericBuilder<'_, 'll, FullCx<'ll, 'tcx>>,
    list: OperandRef<'tcx, &'ll Value>,
    target_ty: Ty<'tcx>,
    pass_mode: PassMode,
    slot_size: SlotSize,
    allow_higher_align: AllowHigherAlign,
    force_right_adjust: ForceRightAdjust,
) -> &'ll Value