marked multi_index/test_serialization as expected failure on MSVC 6.0 + STLport

[SVN r26665]

status/explicit-failures-markup.xml

@@ -645,6 +645,15 @@ for more information.
                 fine.
             </note>
         </mark-unusable>
+        <mark-expected-failures>
+            <test name="test_serialization"/>
+            <toolset name="msvc-stlport"/>
+            <note author="J. L&#243;pez" date="10 Jan 2005">
+              This error shows when using the dynamic version of the STLport
+              library. The problem is reportedly fixed in STLport 5.0 (in beta
+              stage as of this writing.)
+            </note>
+        </mark-expected-failures>
     </library>