Imported Upstream version 4.8.0.309

Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850

mcs/class/System/System.Net/ServicePoint.cs

@@ -505,6 +505,11 @@ namespace System.Net
 				return true;
 			}
 		}
+
+		internal Socket GetConnection(PooledStream PooledStream, object owner, bool async, out IPAddress address, ref Socket abortSocket, ref Socket abortSocket6)
+		{
+			throw new NotImplementedException ();
+		}
 	}
 }