Merge pull request +7752 from c9/tab-errors

Add more error handling to language_test

package.json

@@ -56,7 +56,7 @@
         "c9"
     ],
     "c9plugins": {
-        "c9.ide.language": "#1ae919380b",
+        "c9.ide.language": "#fa45dc5260",
         "c9.ide.language.css": "#ef8a28943e",
         "c9.ide.language.generic": "#32986699ac",
         "c9.ide.language.html": "#bbe81afed1",