marked multi_index/test_serialization as expected failure on IBM VisualAge for AIX

[SVN r29923]

status/explicit-failures-markup.xml

@@ -1269,6 +1269,13 @@ for more information.
               stage as of this writing.)
             </note>
         </mark-expected-failures>
+        <mark-expected-failures>
+            <test name="test_serialization"/>
+            <toolset name="vacpp"/>
+            <note author="J. L&#243;pez" date="07 Jul 2005">
+              Boost.Serialization is not supported on this platform.
+            </note>
+        </mark-expected-failures>
     </library>