private static boolean IPv6address_7_0_0_0(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "IPv6address_7_0_0_0")) return false;
    h16_colon(b, l + 1);
    return true;
  }
private static boolean IPv6address_7_0_0_0(PsiBuilder b, int l)