@Override
	public int getVersion() {
		return langDescription.getVersion();
	}
If instantiated from a file, this method must be invoked prior to the
factory handing out this instance. This will complete the parsing of the
old language file and the initialization of this instance.

@throws JDOMException
@throws SAXException
@throws IOException
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/util/OldLanguage.java