Bug 988416: Test for the Intl property existence before using it; r=till

--HG--
extra : rebase_source : 4a839ccee7d233de918898e88e3615eacd6d3c41

js/src/jit-test/tests/self-hosting/define-value-property.js

@@ -1,4 +1,7 @@
 // These tests just mustn't trigger asserts.
+if (!this.hasOwnProperty('Intl'))
+    quit();
+
 Object.prototype.get = 5;
 new Intl.Collator().resolvedOptions();