RFC on range design for D2

[David Gileadi]

Sergey Gromov wrote:
> If you draw a parallel between a range and a stack of paper, the shrink 
> methods would probably be pop/snap...  I'd also propose next() for 
> moving the start and prev() for moving the end.  It sounds a bit 
> misleading but, on the other hand, it closely resembles forward and 
> backward iteration with the opposite end of a range representing the 
> iteration limit.  Or maybe forward()/backward(), or fwd()/back()?

Perhaps reduce() instead of pop() for moving the end?