other ignored number characters in name generation

[jsfenfen]

name generation bug also seems to have created similar var names for sked a 509 / 170 stuff, i.e.
SA_02_PZ_TRLOBCTYMYEA3 is both:

/Return/ReturnData/IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/CurrentTaxYearMinus3YearsAmt

Note that even though the 'minus' year thing was fixed there's still a problem between TaxRevLeviedOrgnztnlBnft170Grp and TaxRevLeviedOrgnztnlBnft509Grp.

[jsfenfen]

It seems like 170/509 has a pretty substantial overlap with minus year stuff, but it's mostly resolved here: 1f92673