public void addChildReferences(int max, Map<String, Count> childHistogram) {
		TreeSet<Count> resort = new TreeSet<Count>();

		// Resort the histogram on counts
		for (Entry<String, Count> entry : childHistogram.entrySet()) {
			Count count = entry.getValue();
			count.name = entry.getKey();
			resort.add(count);
		}

		maxChildRefs = new LinkedList<Count>();
		int i = 0;
		for (Count count : resort) {
			maxChildRefs.add(count);
			i += 1;
			if (i >= max) {
				break;
			}
		}
	}
Returns a list of symbols that could not be resolved in the end.
Note that the domain file and function entry point will be null for all these.
@return a list of symbols that could not be resolved in the end
Ghidra/Features/FunctionID/src/main/java/ghidra/feature/fid/service/FidPopulateResult.java