@Override
	public int hashCode() {
		final int prime = 31;
		int result = super.hashCode();
		result = prime * result + ((parameterName == null) ? 0 : parameterName.hashCode());
		return result;
	}
Default constructor needed for restoring
a program location from XML
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/util/FunctionParameterNameFieldLocation.java