2.0.64 progression

[bearophile]

H. S. Teoh:

> So this isn't a regression; it's *pro*gression!
>
> (And on that note, I'd like to propose that code breakage of 
> this sort
> *should* be allowed in D. While we *should* be stabilizing the 
> language,
> I don't think it's right to go to the opposite extreme of 
> hindering
> language fixes just so badly-written code will continue to 
> compile.
> Better to get user code cleaned up of similar unsafe practices

I think this is another example of the same:
https://d.puremagic.com/issues/show_bug.cgi?id=4733

Bye,
bearophile