if(arr) now a warning

Thu Apr 30 11:07:10 PDT 2015

On Thursday, 30 April 2015 at 18:04:18 UTC, Vladimir Panteleev 
wrote:
> On Thursday, 30 April 2015 at 17:10:23 UTC, Jeremy Powers wrote:
>> On Thu, Apr 30, 2015 at 8:08 AM, Andrei Alexandrescu via 
>> Digitalmars-d <
>> digitalmars-d at puremagic.com> wrote:
>>
>>>
>>> This trickle of teeny-bit breaking changes for the sake of 
>>> touted benefits
>>> must stop.
>>>
>>>
>> This is how you improve the language.
>
> Only if you ignore the costs of the change...

This one is quite straightforward. Dfix could probably handle it.