Update call debugger display to show status code (#2259)

Author: JamesNK

src/Grpc.Core.Api/Internal/CallDebuggerHelpers.cs

@@ -35,7 +35,7 @@ public static string DebuggerToString(AsyncCallState callState)
         debugText += $"IsComplete = {((status != null) ? "true" : "false")}";
         if (status != null)
         {
-            debugText += $", Status = {status}";
+            debugText += $", StatusCode = {status.Value.StatusCode}";
         }
         return debugText;
     }

test/FunctionalTests/Client/AuthorizationTests.cs

@@ -1,4 +1,4 @@
-#region Copyright notice and license
+#region Copyright notice and license
 
 // Copyright 2019 The gRPC Authors
 //
@@ -71,7 +71,6 @@ Task<HelloReply> UnaryTelemetryHeader(HelloRequest request, ServerCallContext co
         // Act
         await call.ResponseAsync.DefaultTimeout();
 
-
         Assert.AreEqual("Bearer token!", authorization);
     }