D mixins

[Frits van Bommel]

Sean Kelly wrote:
> Frits van Bommel wrote:
>> You could try diffing the provided sources to the originals from DMD 
>> 0.176 and applying the patches to the current Phobos though.
> 
> I think it's just some changes to object.d, deh.c, deh2.d, dmain2.d, 
> from internal, and a new module in std: symtable.d.  The merge should be 
> pretty straightforward.

That's why I suggested trying it :).