@Override
	public DataType toDataType() throws DuplicateNameException, IOException {
		StructureDataType structure = new StructureDataType("line_number", 0);
		structure.add(WORD, "start_pc", null);
		structure.add(WORD, "line_number", null);
		return structure;
	}
The value of the line_number item must give the corresponding line number in the original source file.
@return the corresponding line number in the original source file
Ghidra/Processors/JVM/src/main/java/ghidra/javaclass/format/attributes/LineNumber.java