Bug 483978 - Mochitest test_closeOnGC.html runs fine but needs to check/report success; (Av1) Add |ok(true, ...);|; r+sr=jst

dom/src/threads/test/test_closeOnGC.html

@@ -33,6 +33,7 @@
       return;
     }
     clearInterval(interval);
+    ok(true, "xhr correctly closed");
     SimpleTest.finish();
   }, 500);