[Development] Source break policy for function overloads

[Kai Koehne]

> -----Original Message-----
> From: Development [mailto:development-bounces+kai.koehne=qt.io at qt-
> [...]
>  We do not have SC promise only BC. We tend to not break SC without
> reason, for example we avoid juggling with header files just to "cleanup"
> stuff, but definitely we reserve right to add overloads and new functions.
> That is the current state, whatever it make sense or not is a different
> discussion.

We should fix 

https://wiki.qt.io/Qt-Version-Compatibility

then.

I agree though that we can't guarantee source compatibility in all cases
(indirect includes are one example).

We could establish a rule that methods marked with Q_SLOTS shouldn't
be overloaded. Not that this would've helped, since QTimer::setInterval is not 
marked as a slot.

Regards

Kai