[fpc-devel] class abstract, class sealed implementation. please review.

[Paul Ishenin]

Hello, FPC developers' list

This is my first compiler patch. So please be indulge.

I tried to implement support for delphi sealed and abstract classes. 
They are described a bit here: http://edn.embarcadero.com/article/34324

At moment 'class abstract' in delphi do nothing although it should not 
allow to call a contructor of such a class. I have found QC report 
regards this but anyway parser supports them.
Sealed class is a class which can't be derived by another class. This 
one is fully supported by delphi.

Using attached to this report 
http://bugs.freepascal.org/view.php?id=14824 patch I achieved the same 
behavior by fpc. But as I wrote - it is my first patch and I know 
nothing about compiler developement rules. Please review and comment if 
something is wrong.

Best regards,
Paul Ishenin.