added expected failures for concept check

[SVN r36562]

status/explicit-failures-markup.xml

@@ -363,6 +363,12 @@
                 <toolset name="cw-8.3*"/>
                 <note author="B. Dawes" refid="3"/>
             </mark-failure>
+	    <mark-expected-failures>
+		<toolset name="borland-5*"/>
+		<toolset name="msvc-6.5*"/>
+		<toolset name="msvc-7.0"/>
+		<note author="Jeremy Siek"/>
+	    </mark-expected-failures>
         </test>
         <test name="stl_concept_covering">
             <mark-failure>