Initializes an allocated NSIndexSet object with an index range.
Original signature is '- (id)initWithIndexesInRange:(NSRange)indexRange'
Available in Mac OS X v10.3 and later.


- indexRange (NSRange)
- An index range. Must include only indexes representable as unsigned integers.

Initialized NSIndexSet object with indexRange.

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