Add iswide() and width() method for UserString according as the
addition to unicode objects.
diff --git a/Lib/test/test_userstring.py b/Lib/test/test_userstring.py
index 990199e..b70081f 100755
--- a/Lib/test/test_userstring.py
+++ b/Lib/test/test_userstring.py
@@ -11,7 +11,8 @@
     string_tests.CommonTest,
     string_tests.MixinStrUnicodeUserStringTest,
     string_tests.MixinStrStringUserStringTest,
-    string_tests.MixinStrUserStringTest
+    string_tests.MixinStrUserStringTest,
+    string_tests.MixinUnicodeUserStringTest
     ):
 
     type2test = UserString