message: Add the add_int instruction to AFL.
diff: @@ -475,13 +475,33 @@ void parse_and_apply_instructions(std::string& in, const std::string& path, util
  }
  }
  else if (type == type_Int) {
  + bool add_int = get_next(s) % 2 == 0;
  int64_t value = get_int64(s);
  + if (add_int) {
  + if (log) {
  + *log << "try { g.get_table(" << table_ndx << ")->add_int(" << col_ndx
  + << ", " << row_ndx << ", " << value
  + << "); } catch (const LogicError& le) { CHECK(le.kind() == "
  + "LogicError::illegal_combination); }\n";
  + }
  + try {
  + t->add_int(col_ndx, row_ndx, value);
  + }
  + catch (const LogicError& le) {
  + if (le.kind() != LogicError::illegal_combination) {
  + throw;
  + }
  + }
  + }
  + else {
  if (log) {
  *log << "g.get_table(" << table_ndx << ")->set_int(" << col_ndx << ", " << row_ndx
  << ", " << value << ");\n";
  }
  t->set_int(col_ndx, row_ndx, get_next(s));
  }
  +
  + }
  else if (type == type_Bool) {
  bool value = get_next(s) % 2 == 0;
  if (log) {
  