synchronized OldFunctionIteratorDB getFunctions() {
		try {
			return new OldFunctionIteratorDB();
		}
		catch (IOException e) {
			errHandler.dbError(e);
		}
		return null;
	}
Get an iterator over functions

@return an iterator over functions.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/oldfunction/OldFunctionManager.java