mark emulation_tu_test as expected failure on msvc 7.1/8.0

[SVN r50680]

status/explicit-failures-markup.xml

@@ -4565,6 +4565,12 @@ for more information.
             <toolset name="msvc-8.0"/>
             <note author="Alexander Nasonov" refid="2"/>
         </mark-expected-failures>
+        <mark-expected-failures>
+            <test name="emulation_tu_test"/>
+            <toolset name="msvc-7.1"/>
+            <toolset name="msvc-8.0"/>
+            <note author="Alexander Nasonov" refid="2"/>
+        </mark-expected-failures>
     </library>
 
     <!-- signals -->