GP-4283 Added missing check for destination function existence when c…

…reating an implied match.

Ghidra/Features/VersionTracking/src/main/java/ghidra/feature/vt/gui/util/ImpliedMatchUtils.java

@@ -241,7 +241,13 @@ private static VTImpliedMatchInfo findImpliedMatch(AddressCorrelation correlator
  if (sourceFunction.getProgram()
  .getFunctionManager()
  .getFunctionAt(srcRefToAddress) == null) {
- return null; // function may not have been created here.
+ return null; // source function may not have been created here.
+ }
+
+ if (destinationFunction.getProgram()
+ .getFunctionManager()
+ .getFunctionAt(destRefToAddress) == null) {
+ return null; // destination function may not have been created here.
  }
  }