Improve the OOP ABI

[ryuukk_]

On Monday, 22 January 2024 at 10:08:16 UTC, Andrea Fontana wrote:
> On Sunday, 14 January 2024 at 09:04:32 UTC, Walter Bright wrote:
>> On 9/28/2023 5:42 AM, deadalnix wrote:
>>> 1/ Downcast to final classes.
>>
>> This has a PR for it now.
>>
>> https://github.com/dlang/dmd/pull/16032
>
> Why md5 and not a faster method?
>
> Andrea

That is good opportunity to submit a PR, try it, it's not that 
hard and is rewarding