[dmd-internals] [D-Programming-Language/dmd] dfb683: add purity inference

[Don Clugston]

>>   Log Message:
>>   -----------
>>   add purity inference
>
> So, is this the implementation for some sort of auto pure to make it possible
> for templated functions to be pure based on what they're templatized with? Or
> is it something else?

I believe it is purity inference for delegate literals and function literals.