Searches the receiver and returns the last cell matching the specified tag.
Original signature is '- (id)cellWithTag:(NSInteger)anInt'
Available in Mac OS X v10.0 and later.


- anInt (NSInteger)
- The tag of the cell to return.

The last (when viewing the matrix as a row-ordered array) NSCell object that has a tag matching anInt, or nil if no such cell exists

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