@SuppressWarnings("unused") // for method not being called.
	private void storeLabelByAddress(Address address, String label) {
		Set<String> labels = labelsByAddress.get(address);
		if (labels == null) {
			labels = new TreeSet<>();
			labelsByAddress.put(address, labels);
		}
		if (labels.contains(label)) {
			// TODO investigate why we would see it again.
		}
		labels.add(label);
	}
Processing non-public, non-global symbols.  User should not then call
{@link #processAllSymbols()}; but has these other methods available to supplement this one:
{@link #processGlobalSymbolsNoTypedefs()} and (@link #processPublicSymbols()}
@throws CancelledException upon user cancellation
@throws PdbException upon issue processing the request
Ghidra/Features/PDB/src/main/java/ghidra/app/util/pdb/pdbapplicator/DefaultPdbApplicator.java