void dump(Writer writer) throws IOException {
		PdbReaderUtils.dumpHead(writer, this);
		writer.write(String.format("\nflags: 0x%04x", flags));
		writer.write("\novl: " + ovl);
		writer.write("\ngroup: " + group);
		writer.write("\nframe: " + frame);
		writer.write("\nsegNameIndex: " + segNameIndex);
		writer.write("; classNameIndex: " + classNameIndex);
		writer.write("; segOffset: " + segOffset);
		writer.write("; segLength: " + segLength);
		writer.write("\n");
		PdbReaderUtils.dumpTail(writer, this);
	}
Dumps the {@link SegmentMapDescription} to writer.  This method is for debugging only
@param writer the writer
@throws IOException upon issue with writing to the writer
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb2/pdbreader/SegmentMapDescription.java