Make sure async dispatch cases are generated for connection.[un]blocked

Author: michaelklishin

projects/client/RabbitMQ.Client/src/client/api/IModel.cs

@@ -1017,6 +1017,20 @@ void HandleConnectionClose(ushort replyCode,
                                    string replyText,
                                    ushort classId,
                                    ushort methodId);
+
+        ///<summary>Handle an incoming Connection.Blocked.</summary>
+        [AmqpMethodMapping(null, "connection", "blocked")]
+        [AmqpUnsupported("RabbitMQ.Client.Framing.v0_8qpid")]
+        [AmqpUnsupported("RabbitMQ.Client.Framing.v0_8")]
+        [AmqpUnsupported("RabbitMQ.Client.Framing.v0_9")]
+        void HandleConnectionBlocked(string reason);
+
+        ///<summary>Handle an incominga Connection.Unblocked.</summary>
+        [AmqpMethodMapping(null, "connection", "unblocked")]
+        [AmqpUnsupported("RabbitMQ.Client.Framing.v0_8qpid")]
+        [AmqpUnsupported("RabbitMQ.Client.Framing.v0_8")]
+        [AmqpUnsupported("RabbitMQ.Client.Framing.v0_9")]
+        void HandleConnectionUnblocked();
     }
 
     ///<summary>Essential information from an incoming Connection.Tune

projects/client/RabbitMQ.Client/src/client/impl/ModelBase.cs

@@ -724,6 +724,20 @@ public void HandleConnectionClose(ushort replyCode,
             }
         }
 
+        public void HandleConnectionBlocked(string reason)
+        {
+	    ConnectionBase cb = ((ConnectionBase)m_session.Connection);
+
+	    cb.HandleConnectionBlocked(reason);
+	}
+
+        public void HandleConnectionUnblocked()
+        {
+	    ConnectionBase cb = ((ConnectionBase)m_session.Connection);
+
+	    cb.HandleConnectionUnblocked();
+	}
+
         public void HandleChannelClose(ushort replyCode,
                                        string replyText,
                                        ushort classId,