Adam Barth 9c8763368f Fixed extent lists cannot handle infinite extent (#8885)
Previously they tried to compute an integer target end index, but
integers can't represent infinity. Now we use null to represent
infinity.

Also, fix some similar issues with grids.

Fixes #8398
2017-03-20 12:45:52 -07:00
..
2017-01-13 14:44:59 -08:00