public void dump(Writer writer) throws IOException {
		for (DataVertex vertex : nodeList) {
			writer.append(vertex.toString());
			writer.append('\n');
		}
	}
Dump a string representation of the data-flow graph.
@param writer is the stream to write the string to
@throws IOException for problems with the stream
Ghidra/Features/CodeCompare/src/main/java/ghidra/features/codecompare/graphanalysis/DataGraph.java