private VxtPtrInfo createVirtualOwnedSelfVxtPtrInfo(VxtPtrInfo baseInfo, ClassID baseId) {
		Long accumOffset = baseInfo.accumOffset();
		Long finalOffset = accumOffset + baseOffsetById.get(baseId);
		return new VxtPtrInfo(finalOffset, accumOffset, baseId, updateParentage(baseInfo));
	}
Converts VxtPtrInfo from virtual-based-owned direct base for this class
@param baseInfo the vxt info from the base
@param baseId the base id of the base
@return the new VxtPtrInfo for this class
Ghidra/Features/PDB/src/main/java/ghidra/app/util/pdb/pdbapplicator/CppCompositeType.java