add the SocketConnection ShutdownKind/SocketError to the failure outputl make...

add the SocketConnection ShutdownKind/SocketError to the failure outputl make Roslynator happy in a bunch of places

StackExchange.Redis/StackExchange/Redis/ExceptionFactory.cs

@@ -195,10 +195,6 @@ private static string GetLabel(bool includeDetail, RedisCommand command, Message
             return message == null ? command.ToString() : (includeDetail ? message.CommandAndKey : message.Command.ToString());
         }
 
-        private static string GetLabel(bool includeDetail, string command, Message message)
-        {
-            return message == null ? command : (includeDetail ? message.CommandAndKey : message.Command.ToString());
-        }
         internal static Exception UnableToConnect(ConnectionMultiplexer muxer, string failureMessage=null)
         {
             var sb = new StringBuilder("It was not possible to connect to the redis server(s).");

StackExchange.Redis/StackExchange/Redis/PhysicalConnection.cs

@@ -275,7 +275,8 @@ public Task FlushAsync()
             return Task.CompletedTask;
         }
 
-        public void RecordConnectionFailed(ConnectionFailureType failureType, Exception innerException = null, [CallerMemberName] string origin = null, bool isInitialConnect = false)
+        public void RecordConnectionFailed(ConnectionFailureType failureType, Exception innerException = null, [CallerMemberName] string origin = null,
+            bool isInitialConnect = false, IDuplexPipe connectingPipe = null)
         {
             Exception outerException = innerException;
             IdentifyFailureType(innerException, ref failureType);
@@ -307,6 +308,16 @@ public void RecordConnectionFailed(ConnectionFailureType failureType, Exception
 
                     var exMessage = new StringBuilder(failureType.ToString());
 
+                    if ((connectingPipe ?? _ioPipe) is SocketConnection sc)
+                    {
+                        exMessage.Append(" (").Append(sc.ShutdownKind);
+                        if (sc.SocketError != SocketError.Success)
+                        {
+                            exMessage.Append("/").Append(sc.SocketError);
+                        }
+                        exMessage.Append(")");
+                    }
+
                     var data = new List<Tuple<string, string>>();
                     if (IncludeDetailInExceptions)
                     {
@@ -1082,6 +1093,7 @@ internal async ValueTask<bool> ConnectedAsync(Socket socket, TextWriter log, Soc
             var bridge = BridgeCouldBeNull;
             if (bridge == null) return false;
 
+            IDuplexPipe pipe = null;
             try
             {
                 // disallow connection in some cases
@@ -1093,7 +1105,6 @@ internal async ValueTask<bool> ConnectedAsync(Socket socket, TextWriter log, Soc
 
                 var config = bridge.Multiplexer.RawConfig;
 
-                IDuplexPipe pipe;
                 if (config.Ssl)
                 {
                     bridge.Multiplexer.LogLocked(log, "Configuring SSL");
@@ -1141,7 +1152,7 @@ internal async ValueTask<bool> ConnectedAsync(Socket socket, TextWriter log, Soc
             }
             catch (Exception ex)
             {
-                RecordConnectionFailed(ConnectionFailureType.InternalFailure, ex, isInitialConnect: true); // includes a bridge.OnDisconnected
+                RecordConnectionFailed(ConnectionFailureType.InternalFailure, ex, isInitialConnect: true, connectingPipe: pipe); // includes a bridge.OnDisconnected
                 bridge.Multiplexer.Trace("Could not connect: " + ex.Message, physicalName);
                 return false;
             }