txn_test_gen_pligin nonce - use a dummy action on nobody account

plugins/txn_test_gen_plugin/txn_test_gen_plugin.cpp

@@ -252,9 +252,6 @@ struct txn_test_gen_plugin_impl {
       fc::crypto::private_key a_priv_key = fc::crypto::private_key::regenerate(fc::sha256(std::string(64, 'a')));
       fc::crypto::private_key b_priv_key = fc::crypto::private_key::regenerate(fc::sha256(std::string(64, 'b')));
 
-      static uint64_t nonce = static_cast<uint64_t>(fc::time_point::now().sec_since_epoch()) << 32;
-      abi_serializer eosio_serializer(cc.get_database().find<account_object, by_name>(config::system_account_name)->get_abi());
-
       uint32_t reference_block_num = cc.last_irreversible_block_num();
       if (txn_reference_block_lag >= 0) {
          reference_block_num = cc.head_block_num();
@@ -269,11 +266,9 @@ struct txn_test_gen_plugin_impl {
 
       for(unsigned int i = 0; i < batch; ++i) {
       {
-      variant nonce_vo = fc::mutable_variant_object()
-         ("value", fc::to_string(nonce++));
       signed_transaction trx;
       trx.actions.push_back(act_a_to_b);
-      trx.context_free_actions.emplace_back(action({}, config::system_account_name, "nonce", eosio_serializer.variant_to_binary("nonce", nonce_vo)));
+      trx.context_free_actions.emplace_back(action({}, config::nobody_account_name, "nonce", fc::raw::pack(nonce++)));
       trx.set_reference_block(reference_block_id);
       trx.expiration = cc.head_block_time() + fc::seconds(30);
       trx.max_net_usage_words = 100;
@@ -282,11 +277,9 @@ struct txn_test_gen_plugin_impl {
       }
 
       {
-      variant nonce_vo = fc::mutable_variant_object()
-         ("value", fc::to_string(nonce++));
       signed_transaction trx;
       trx.actions.push_back(act_b_to_a);
-      trx.context_free_actions.emplace_back(action({}, config::system_account_name, "nonce", eosio_serializer.variant_to_binary("nonce", nonce_vo)));
+      trx.context_free_actions.emplace_back(action({}, config::nobody_account_name, "nonce", fc::raw::pack(nonce++)));
       trx.set_reference_block(reference_block_id);
       trx.expiration = cc.head_block_time() + fc::seconds(30);
       trx.max_net_usage_words = 100;
@@ -313,7 +306,9 @@ struct txn_test_gen_plugin_impl {
    action act_a_to_b;
    action act_b_to_a;
 
-   abi_serializer currency_serializer = fc::json::from_string(eosio_token_abi).as<abi_def>();
+   uint64_t nonce = static_cast<uint64_t>(fc::time_point::now().sec_since_epoch()) << 32;
+
+   abi_serializer eosio_token_serializer = fc::json::from_string(eosio_token_abi).as<contracts::abi_def>();
 };
 
 txn_test_gen_plugin::txn_test_gen_plugin() {}