public GlobalReferenceOffsetIterator getGlobalReferenceOffsetIterator()
			throws CancelledException, PdbException {
		PdbByteReader globalRefsReader = getGlobalRefsReader();
		GlobalReferenceOffsetIterator iterator =
			new GlobalReferenceOffsetIterator(globalRefsReader);
		return iterator;
	}
Returns a GlobalReferenceOffsetIterator, but note that there is no determined end for
iteration other than running out of data... it is very unlikely that it should be iterated
until it is out of data.  Context should probably be used.  For instance, if the global
symbol that is first in this iterator is a GPROC32, then it should probably be iterated over
nested blocks until the closing END is found for the GPROC32
@return the iterator
@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/Module.java