Template functions, can we make it more simple?

[Suliman]

> I've brought this up on here awhile ago, and many people seemed 
> to be against it. Which I don't agree with, since the 
> ambiguities it creates are easily addressed (from a design 
> perspective at least) and only exist so that C-style code is 
> usable within D. It could work like:
>
>    auto func(a, b)     // auto func(A, B)(A a, B b)
>    auto func(int a, b) // auto func(B)(int a, B b)
>    auto func(int ?)    // C-style: auto func(int)

  I like it!