[Patch]improve visibility of private inner class variables in org...optional.depend.Depend

[Kev Jackson <ke...@it.fts-vn.com>]

This is an Eclispe whiny fix
- change visibility from private to protected for private inner classes 
(ClassFileInfo)

rational: because Eclipse whines about it
"Read access to enclosing field Depend.ClassFileInfo.isUserWarned is 
emulated by a synthetic accessor method.  Increasing it's visibility 
will improve your performance"

There are a few of these scattered about in the code.  If no-one has an 
issue with changing the visibility of these (within one class), then I'm 
happy to change them all.

Kev