Bug 984063 - bail out of ion/bug977674.js when parallel isn't defined instead of making mozilla-aurora permaorange

js/src/jit-test/tests/ion/bug977674.js

@@ -1,3 +1,5 @@
+if (!getBuildConfiguration().parallelJS)
+  quit(0);
 
 function testReduce() {
   function sum(a, b) {