Now that we have the enumerate expr, -i/--enumerate can be implemented
entirely during expr eval:
- -i/--enumerate => -bi -Fi=enumerate()
- -I/--hidden-enumerate => -Bi -Fi=enumerate()
Instead of internally reimplementing the same behavior.
This is what our help text implies, so might as well put our money where
our mouth is. And the less special internals we have, the better.
I considered removing -i/-I completely, but it's quite a convenient flag
when debugging csv.py expressions.
Christopher Haster
6c458b321c