[osflash] Know how many kb each class adds to the SWF when compiling with MTASC

[Darren Cook]

> It sounds like what you actually want is a tool that generates a  
> dependency graph so you can find out which classes aren't used at all  
> ...
> You could go even farther and eliminate dead code by removing unused  
> methods and their dependencies, but that requires a lot more analysis  

This sounds great! It sounds like a lot of work though. I wonder if
MTASC code could give a headstart - in strict mode it already seems to
understand quite a lot.

Darren