Interprocedural PDG analysis fails for vargargs methods #36
Description
InterproceduralPDG:createRelationsIfNeededForArgumentNumber
This method is called from "doInterproceduralPDGAnalysis", looking for the last argument.
For those vargargs calls that include 0 arguments (0-length array),
List invocationModifyThisVarInfo = invocationModifyVarsInfo.get(argNumber);
is null, causing a nullpointerexception