Added explicit failures for newly discovered GCC const ref binding bug (see Ticket #1301)

[SVN r40859]

status/explicit-failures-markup.xml

@@ -2229,6 +2229,13 @@ for more information.
             <toolset name="msvc-7.0"/>
             <note author="Aleksey Gurtovoy" refid="3"/>
         </mark-expected-failures>
+        <mark-expected-failures>
+            <test name="optional_test_ref"/>
+            <toolset name="darwin-4.0.1"/>
+            <toolset name="gcc-mingw-3.4.5"/>
+            <toolset name="gcc-4.2.1*"/>
+            <note author="Fernando Cacciola" refid="2"/>
+        </mark-expected-failures>
         <mark-expected-failures>
             <test name="optional_test_ref_fail1"/>
             <toolset name="borland-5.6*"/>