Cannot hash a std.datetime.Date

[Seb]

On Sunday, 17 June 2018 at 18:15:19 UTC, Per Nordlöw wrote:
> The following
>
> unittest
> {
>     import std.datetime.date : Date;
>     Date date;
>     import core.internal.hash : hashOf;
>     auto hash = date.hashOf;
> }
>
> [...]

Well it definitely used to work before:

https://run.dlang.io/is/ayjpcH

I opened an issue for you:

https://issues.dlang.org/show_bug.cgi?id=19005

The PR that introduced this regression was 
https://github.com/dlang/druntime/pull/2200