Turned Borland back off since it fails in MPL

[SVN r55299]

status/explicit-failures-markup.xml

@@ -1791,7 +1791,7 @@
     <library name="graph">
         <mark-unusable>
             <toolset name="borland-5.*"/>
-            <!-- Testing 7/30/2009: <toolset name="borland-6.*"/> -->
+            <toolset name="borland-6.*"/>
             <!-- Open64 and Pathscale ICE on almost all test cases, often
             because of http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17327;
             property type detection fails because it uses enum types as tags.