@Override
	public void restoreState(Program p, SaveState obj) {
		super.restoreState(p, obj);
		parameterName = obj.getString("_FUNCTION_PARAMETER_NAME", null);
	}
Default constructor needed for restoring
a program location from XML
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/util/FunctionParameterNameFieldLocation.java