[System]: Make Test/System.Net.Sockets compile.

(cherry picked from commit c2e7ca6c99d4ae16832b2e00acde7eafd668de14)

diff --git a/mcs/class/System/Test/System.Net.Sockets/SocketAcceptAsyncTest.cs b/mcs/class/System/Test/System.Net.Sockets/SocketAcceptAsyncTest.cs
index cc2d8249fd3a63a57d8ab4713b8fc012235d4d78..d09341b9710d9d781ea7e4852ccdd15303c06bdf 100644 (file)
--- a/mcs/class/System/Test/System.Net.Sockets/SocketAcceptAsyncTest.cs
+++ b/mcs/class/System/Test/System.Net.Sockets/SocketAcceptAsyncTest.cs
@@ -1,3 +1,4 @@
+using System;
 using System.Threading;
 using System.Net;
 using System.Net.Sockets;