Dynamic dispatching reloaded

In previous posts I was exploring a feature I am interested in, and which I have called in many different ways — here I will call it dynamic dispatching.

The previous articles:

• Dynamic overloading
• “Dynamic overloading” in other languages (not C++)

Conclusion of those posts: out of the box only Perl6 has it.

The story went on like this: I stirred the net for a solution in C++. And I obtained it.

“Dynamic overloading” in other languages (not C++)

In a previous post I've imagined that future C++ could dynamically dispatch a call to a proper function/method according to the derived types of its arguments — that is, dynamic overloading, whereas notoriously in C++ overloading is a compile time feature.

Now the question is: what about other languages?