@Override
	public int hashCode() {
		return super.hashCode();
	}
Implements the DomainFile interface for DomainObjects that are not currently
associated with any real DomainFile. This class enforces the sharing of
objects between tools.  After the first tool gets the implementation, all
other gets() just get the same instance.  This class also keeps track of
which tools are using a its domain object.
Ghidra/Framework/Project/src/main/java/ghidra/framework/data/DomainFileProxy.java