@Override
	public ProgramLocation getHomeLocation() {
		return null;
	}
A LocationDescriptor that is used when the user wants to create a descriptor that describes at
data type, but not a real location that contains a data type.  Most LocationDescriptors 
describe an exact point in the listing display.  This descriptor is designed to describe a 
data type, but does not point to any real position in the display.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/navigation/locationreferences/GenericDataTypeLocationDescriptor.java