add -allinst compiler switch

[Max Samukha]

On Friday, 18 October 2013 at 07:17:12 UTC, Walter Bright wrote:
> Explained here:
>
> http://d.puremagic.com/issues/show_bug.cgi?id=11284
>
> It's a bit complicated, and important.
>
> BTW, I hate the name of the switch, but haven't thought of 
> anything better.

A good start would be to have the issues thoroughly explained in 
the documentation. As far as I know, no article on templates 
mentions how they are actually compiled.