Inheritance from multiple interfaces with the same method name

[Q. Schroll]

On Thursday, 7 December 2017 at 15:14:48 UTC, Adam D. Ruppe wrote:
> On Thursday, 7 December 2017 at 00:45:21 UTC, Mike Franklin 
> wrote:
>>     // Error: A.f called with argument types () matches both: 
>> A.f() and A.f()
>>     // Yeah, that error message could be better.
>>     //a.f();
>>
>>     (cast(I)a).f(); // prints "void f()"
>>     (cast(J)a).f(); // prints "int f()"
>
>
> D also allows you to simply write:
>
> a.I.f();
> a.J.f();
>
> also works for explicitly calling a base class implementation 
> btw

This implies that I cannot implement two syntactically identical 
methods with different implementations, like if J had void f(); 
too, I cannot have different implementations for I.f() and J.f(). 
That would be relevant if they should behave differently e.g. if 
they have conflicting contracts.