THRIFT-4831 interface ITProtocolFactory should be class TProtocolFactory again
Client: netstd
Patch: Jens Geyer

This closes #1767
diff --git a/test/netstd/Server/TestServer.cs b/test/netstd/Server/TestServer.cs
index d15ca71..1aa8a77 100644
--- a/test/netstd/Server/TestServer.cs
+++ b/test/netstd/Server/TestServer.cs
@@ -587,7 +587,7 @@
                 }
 
                 // Protocol
-                ITProtocolFactory proto;
+                TProtocolFactory proto;
                 switch (param.protocol)
                 {
                     case ProtocolChoice.Compact: