Bug: Infinite loop in [CPView isHiddenOrHasHiddenAncestors]

If you have a visible CPView and call -(BOOL)isHiddenOrHasHiddenAncestors on it, you get an infinite loop:

- (BOOL)isHiddenOrHasHiddenAncestor
{
    var view = self;
    
    while (![view isHidden])
        view = [view superview];
    
    return view != nil;
}

if all superviews respond NO to -(BOOL)isHidden, view will become nil. because nil doesn't respond true to messages, you will get an infinite loop.

the while loop should be:

while (view && ![view isHidden])