[MERGE #5248 @boingoing] Disable bug_os17698041.js unit test under jshost

Merge pull request #5248 from boingoing:jshost_rlexe

Author: boingoing

test/Function/rlexe.xml

@@ -453,6 +453,7 @@
     <default>
       <files>bug_os17698041.js</files>
       <compile-flags>-off:deferparse -force:redeferral -collectgarbage -parserstatecache -useparserstatecache</compile-flags>
+      <tags>exclude_jshost</tags>
     </default>
   </test>
 </regress-exe>