This fixes the textclock-specific part of the test that the previous commit
added.
To fix this, gears.timer.weak_start_new() is used. This function creates a timer
that is automatically stopped when its callback function is garbage collected.
The callback function is saved as a member of the texbox widget that is the
"widget behind the textclock". Thus, the timer can only be stopped after the
widget is garbage-collected, but the timer does not keep the widget alive.
Signed-off-by: Uli Schlachter <psychon@znc.in>
Emmanuel Lepage Vallee
Uli Schlachter
Julian Wollrath