protected String doComplete(Symbol clazz) { try { return doComplete0(clazz); }
protected String doComplete(Symbol root) { assert root.isClassType(): Debug.show(root); try { return doComplete0(root); }
    protected String doComplete(Symbol clazz) {	try { return doComplete0(clazz); }	catch (Throwable e) {	    System.err.println("\nWhile processing " + Debug.show(clazz));	    e.printStackTrace();	    System.exit(1);            return null; // !!!	}    }