Should we deprecate comma?

[bearophile]

Andrei Alexandrescu:

> Yes, can't find it now. It was something like:
>
> foreach (e; chain(iota('a', 'я')), iota('A', 'Я')) {
>    ...
> }

Then if all or most comma-related bugs are caught with a more 
limited language change, then it's an interesting thing to know. 
Minimizing change impact is often positive.

How is this more limited change affecting possible future syntax 
usage of commas for tuples? :-)

Bye,
bearophile