@Override
	public Address getOverlayAddress(Address addr) {
		if (getOverlayedSpace().equals(addr.getAddressSpace())) {
			if (contains(addr.getOffset())) {
				return new GenericAddress(this, addr.getOffset());
			}
		}
		return addr;
	}
Get the {@link AddressSet} which corresponds to overlayed physical region which 
corresponds to the defined overlay regions within the overlay (i.e., overlay blocks).
@return defined regions within the overlay.  All addresses are overlay addresses.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/address/OverlayAddressSpace.java