Store session commands also as SessionCommand

The session commands are now duplicated as SessionCommand objects This
allows for an easier migration from the old session command implementation
to the new one.

server/modules/routing/readwritesplit/readwritesplit.cc

@@ -1157,6 +1157,22 @@ static void closeSession(MXS_ROUTER *instance, MXS_ROUTER_SESSION *router_sessio
                 }
             }
         }
+
+        if (MXS_LOG_PRIORITY_IS_ENABLED(LOG_INFO) &&
+            router_cli_ses->sescmd_list.size())
+        {
+            std::string sescmdstr;
+
+            for (mxs::SessionCommandList::iterator it = router_cli_ses->sescmd_list.begin();
+                 it != router_cli_ses->sescmd_list.end(); it++)
+            {
+                mxs::SSessionCommand& scmd = *it;
+                sescmdstr += scmd->to_string();
+                sescmdstr += "\n";
+            }
+
+            MXS_INFO("Executed session commands:\n%s", sescmdstr.c_str());
+        }
     }
 }