Moves the existing points-to predicates to the newly added class
`ControlFlowNodeWithPointsTo` which resides in the `LegacyPointsTo`
module.
(Existing code that uses these predicates should import this module, and
references to `ControlFlowNode` should be changed to
`ControlFlowNodeWithPointsTo`.)
Also updates all existing points-to based code to do just this.
I got my eyes on this one since it was using a deprecated method, BUT it was
also doing the thing, since File.getName() is the same as
File.getAbsolutePath(), and that doesn't match the description :\