Marks the specified cell as in need of redrawing.
Original signature is '- (void)updateCell:(NSCell *)aCell'
Available in Mac OS X v10.0 and later.


- aCell (NSCell)
- The cell to redraw.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)