private static boolean filterExpression_1_0(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "filterExpression_1_0")) return false;
    boolean r;
    Marker m = enter_section_(b);
    r = consumeToken(b, LPARENTH);
    r = r && expression(b, l + 1, -1);
    r = r && consumeToken(b, RPARENTH);
    exit_section_(b, m, null, r);
    return r;
  }
private static boolean filterExpression_1_0(PsiBuilder b, int l)