message: Little fix to use toString() for checking parameters
diff: @@ -103,7 +103,7 @@ const int nRequiredBits() const override {
  xacc::InstructionParameter param = instruction->getParameter(0);
  bool dupParam = false;
  for (auto p : parameters) {
  - if (p.as<std::string>() == param.as<std::string>()) {
  + if (p.toString() == param.toString()) {
  dupParam = true;
  }
  }
  