public ClassID[] getAllVftOwners() {
		ClassID ids[] = new ClassID[vftsByOwner.size()];
		Set<ClassID> set = vftsByOwner.keySet();
		return set.toArray(ids);
	}
Returns the class IDs of all owners of VFTs
@return the IDs
Ghidra/Features/PDB/src/main/java/ghidra/app/util/pdb/classtype/MsVxtManager.java