@Override
	public boolean hasNext() {
		if (currentGlobalReferenceOffset == null) {
			find();
		}
		return (currentGlobalReferenceOffset != null);
	}
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