VFS::visit on a leaf

[alesj]

With idea of removing IllegalStateException for leaves:
- http://jira.jboss.com/jira/browse/JBVFS-10
This should probably also affect visit method:

 public void visit(VirtualFileVisitor visitor) throws IOException
 {
 if (isLeaf())
 throw new IllegalStateException("File cannot contain children: " + this);

 getVFS().visit(this, visitor);
 }

With just ignoring the visit, or not?

[adrian.brock]

I thought you'd already done this as part of the findChild() change?

Yes. Visiting a leaf should just be a no-op not an exception.

[alesj]

I thought you'd already done this as part of the findChild() change?

No, that's another JIRA. ;-)
OK, changing that now.