Altering CallExtractor to take AnySharedPointer to improve type safety
TypeUnifier requires special handling for AutoFilter

This is needed because a pointer fixup is required before a call takes place on a nonpolymorphic type
Distinguish inputs in merge test.
TypeUnifier changes type_name of AutoFilter instance. Modified AutoPacketFactory and AutoMerge to use SelectTypeUnifier<T>::type.
Correcting erroneous text
Cleaning up else-filter declaration
Detemplatification of NewAutoFilter
Eliminating a hard-to-support duplication check
Demangle error message in AutoPacket.