Docs: Section on local variables

[Timon Gehr]

On 04/20/2012 01:04 PM, bearophile wrote:
> Andrej Mitrovic:
>
>> I think these features probably belong to some lint-type tool and not
>> the compiler.
>
> On the contrary, I hope to see them implemented in the D front-end.
> I've seen again and again that people don't even use warnings, so I don't
> think many of them use lints.
> This means, tests should be built-in and
> active on default (this means I'd like D informational warnings to be
> active on default, and be disabled with a compiler switch!).
>

I don't usually use warnings because of this issue:
http://d.puremagic.com/issues/show_bug.cgi?id=6552