Alias syntax removal

[Tove]

On Sunday, 10 February 2013 at 14:42:50 UTC, kenji hara wrote:
> 2013/2/10 kenji hara <k.hara.pg at gmail.com>
> Why I argue that the syntax `alias this = sym;` is wrong? 
> Because:
>
> Benefits of the proposed syntax are:
> 2a. It is consistent with class inheritance syntax `class C : B 
> {}`.
> 2b. It is scalable for multiple alias this feature, as like 
> `alias this
> : sym1, sym2, ...;` .
>

2a. I agree.

2b. I always assumed multiple alias would be introduced like 
this...
alias this = sym1;
alias this = sym2;

... which also is "needed" if you use a "3rd party library mixin" 
in your struct(which internally uses alias this), so even with 
the ':' syntax it's anyway required to support being able to use 
it multiple times:

alias this : sym1;
alias this : sym2;

So I don't think 2b speaks in favor of the new syntax.