throw new Error(filename + ": " + e.getMessage());
throw new WrappedError(filename, e);
    public void load(Reader r, String filename) {        try {            PDLParser p = new PDLParser(r);            FileNd file = p.file(filename);            m_ast.add(AST.FILES, file);        } catch (ParseException e) {            throw new Error(filename + ": " + e.getMessage());        }    }