@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((ranges == null) ? 0 : ranges.hashCode());
		return result;
	}
Insert all fields in the ranges in the given field selection from this one.
@param selection the field selection fields to add to this field selection.
Ghidra/Framework/Docking/src/main/java/docking/widgets/fieldpanel/support/FieldSelection.java