Multiple alias this is coming.

[IgorStepanov via Digitalmars-d-announce]

On Friday, 19 September 2014 at 17:19:09 UTC, Andrei Alexandrescu
wrote:
> On 9/19/14, 3:21 AM, Dicebot wrote:
>> On Friday, 19 September 2014 at 09:34:22 UTC, ponce wrote:
>>> Call me unimaginative, but I'm struggling to see any use case 
>>> for
>>> multiple alias this, and I struggle even more for such 
>>> constructors
>>> aliasing.
>>
>> Pretty much every single time you have ever wanted to do 
>> multiple
>> inheritance of implementation multiple `alias this` was the 
>> proper tool
>> for a job. I notice myself thinking "this could have been done 
>> much
>> cleaner with multiple alias this" at least once a month :)
>
> Yah, multiple subtyping of structs is terrific to have. Thanks 
> Igor for this work! -- Andrei

You are welcome :)
BTW. Please comment (approve or correct) semantic rules, which
used for conflict resolving.
I've written it early and reflected it in the PR tests.