diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testBug704351.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testBug704351.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+if (this.dis !== undefined) {
+    var generatorPrototype = (function() { yield 3; })().__proto__;
+    try {
+        this.dis(generatorPrototype);
+    } catch(e) {}
+}