Bug 1568035: Follow-up: Skip additional test with new shutdown leaks. r=mccr8

Differential Revision: https://phabricator.services.mozilla.com/D39971

--HG--
extra : moz-landing-system : lando

dom/system/tests/mochitest.ini

@@ -3,3 +3,4 @@ support-files =
   file_bug1197901.html
 
 [test_bug1197901.html]
+skip-if = fission && (debug || asan) # Causes shutdown leaks under Fission.