@Override
	public Long next() throws NoSuchElementException {
		if (hasNext()) {
			Long returnGlobalReferenceOffset = currentGlobalReferenceOffset;
			currentGlobalReferenceOffset = null;
			return returnGlobalReferenceOffset;
		}
		throw new NoSuchElementException("next() called with no more elements");
	}
An Iterator of Global Reference Offsets
@param reader PdbByteReader containing only Global Reference Offsets information and in
newly constructed state
@throws CancelledException upon user cancellation
@throws PdbException upon not enough data left to parse
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/GlobalReferenceOffsetIterator.java