[fpc-pascal] how to define a generic subclass inheriting from another generic class?

[Marco van de Voort]

In our previous episode, Jonas Maebe said:
> > The way FPC handles generics went against all other previous Pascal
> > conventions. You always had
> 
> If you really want to restart the discussion, please move it to fpc-other.

(or, if 2.7.1, use $mode delphi and the Delphi syntax)