// set flag JSONSpecialIntegral_debug.

svoid test_JSONSpecialIntegral() {
  new JSONSpecialIntegral integral;
  integral.analyze([[{"abcdefghijklmnop": "abcdefghijklmnopq", "abcdefghijklmnopq": "abcdefghijklmnop"}]]);
  print(integral.stats()); 
  print(sfuWithIndent(integral));
  int n = integral.n();
  
  embedded void descend(int i, int iEnd) {
    printVars descend(i, iEnd);
  }
  
  descend(0, n);
}