Set an upper limit on isect2d splits in LabelCollider::process (#2307)
Set an upper limit on isect2d splits in LabelCollider::process (#2307)

This prevents extremely large memory allocations when a tile is over-zoomed by many levels.
tangrams/tangram-es,tangrams/tangram-es,tangrams/tangram-es,tangrams/tangram-es,tangrams/tangram-es,tangrams/tangram-es,tangrams/tangram-es