@Override
	int computeHashCode() {
		return Objects.hash(orderedKey, baseSpace);
	}
Get the ordered key assigned to this overlay address space instance  This value is used
when performing {@link #equals(Object)} and {@link #compareTo(AddressSpace)}
operations.
<p>
If this value does not have its optimal value (i.e., same as address space name), the 
associated {@link AddressFactory} should report a 
{@link AddressFactory#hasStaleOverlayCondition() stale overlay condition}.
@return instance ordered key
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/address/OverlayAddressSpace.java