Add an example comment to the NegJumpOperator table
Add an example comment to the NegJumpOperator table

The table is a little confusing. I'm trying to get the point across
that:
1. Comparisons always compile to a jump instruction
2. Some language constructions jump if the comparison is false
3. This requires us to negate the comparsion.
4. This table maps comparisons to negated jump/compare operators.

Signed-off-by: Robert Young <42c59959a3f4413d6a1b4d7b4f99db457d199e49@gmail.com>

jduimovich/Base9,youngar/Base9,youngar/Base9,youngar/Base9,jduimovich/Base9