if(arr) now a warning

[Vladimir Panteleev via Digitalmars-d]

On Thursday, 9 April 2015 at 20:59:00 UTC, Steven Schveighoffer 
wrote:
> What do you think?

Well, that's a pretty one-sided description of the argument!

I would like to invite anyone interested in this proposal to try 
compiling their own code with the latest compiler, and see how 
much busywork this creates vs. how much real bugs this identifies.

The tools repository is occasionally used as a guinea pig for 
breaking changes. Consider the amount of changes needed here, as 
an example:

https://github.com/D-Programming-Language/tools/pull/166/files

(Disclaimer: part of this is my own code, and I consider the 
distinction between null and empty arrays an obvious and useful 
principle.)

IMHO, this is not something worth breaking the language over.