override deprecated

[bearophile]

Steve Teale:

> I'm sure this was discussed at great length sometime, but 
> yesterday (and the day before) I had one of those days where I 
> turned on warnings , and told the compiler not to ignore 
> deprecated things.

A better compiler design is to have warning activated on default 
and to be disabled on request with a compiler switch.

This is the enhancement request where I asked the obligatory 
usage of override:
http://d.puremagic.com/issues/show_bug.cgi?id=3836

Bye,
bearophile