filesystem expected failure for _dll tests

[SVN r30273]

status/explicit-failures-markup.xml

@@ -845,6 +845,12 @@
                 the most recent version of the library.
             </note>
         </mark-unusable>
+        <mark-expected-failures>
+            <test name="operations_test_dll"/>
+            <test name="path_test_dll"/>
+            <toolset name="borland-5_6_4"/>
+            <note author="Beman Dawes" refid="35"/>
+        </mark-expected-failures>
     </library>
 
     <!-- format -->