Null Dereference Discovered from ANTLR3 Generated Code in NCalc's NCalcParser

[ssaputo]

I posted a discussion in ANTLR4 about ANTLR3 and wanted to make sure that this repo is aware of the null dereference discovery. You can see the description of the issue in the link below and would like to see if any updates are scheduled to address this:

• Null Dereference Discovered From ANTLR3 Generated Code in NCalc antlr4#3886 (comment)

Thanks!