HiddenTraversalTest consists of a Frame with six Buttons. The instructions
suggest to resize the Frame so that only four Buttons are visible, and then
start tabbing across the Buttons. The correct behaviour is to traverse across
all components, including those that don't fit in the Frame.
If initially the focus was on button0, it should return to that button after
pressing TAB six times. On Solaris, however, the focus gets stuck on button5
(i.e. on last button that doesn't fit in the Frame).
This behaviour is different from original bug, but is incorrect too.
The test works fine on Windows.