diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug808067.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug808067.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+function TestCase(n, d, e, a)
+  this.reason = '';
+function reportCompare (expected, actual, description) {
+  var output = "";
+  var testcase = new TestCase("unknown-test-name", description, expected, actual);
+  testcase.reason = output;
+}
+gcPreserveCode();
+var summary = 'return with argument and lazy generator detection';
+expect = "generator function foo returns a value";
+actual = (function (j)  {}).message;
+reportCompare(expect, actual, summary + ": 1");
+reportCompare(expect, actual, summary + ": 2");
+gcslice(0);
+gcslice(1);
+gc();
+var strings = [ (0), ];
+for (var i = 0; i < strings.length; i++)
+  reportCompare(expect, actual, summary + (5e1) + strings[i]);