dmd 1.069 and 2.054 release

[Adam Ruppe]

Jonathan M Davis:
> If it gives you  stack trace though, I guess that it would help,
> though it would certainly be ugly.

It's not too ugly at all, since it's a template stack trace - so in
a lot of cases, it isn't a very long list.

Regardless though, something is better than nothing.

> Fortunately, in the case of something like tolower, _every_
> function called

Indeed, though another one was repeat() with replicate(), which isn't
as simple without the compiler's help.

While a proper warning is surely better than a filthy hack, if it's
not coming, adding a versioned static assert is a low cost alternative
we can do immediately.