diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug591602.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug591602.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,40 @@
+try {
+    for (x in ['']) {
+        gczeal(2)
+    }
+} catch(e) {}
+try {
+    var x, e
+    p()
+} catch(e) {}
+try { (function() {
+        let(x)((function() {
+            let(y)((function() {
+                try {
+                    let(c) o
+                } finally { (f, [1,2,3])
+                }
+            }))
+        }))
+    })()
+} catch(e) {}
+try { (function() {
+        if (x.w("", (function() {
+            t
+        })())) {}
+    })()
+} catch(e) {}
+try {
+    gczeal()
+} catch(e) {}
+try { (function() {
+        for (let w in [0, 0]) let(b)((function() {
+            let(x = w = [])((function() {
+                for (let a in []);
+            }))
+        })())
+    })()
+} catch(e) {}
+
+/* Don't assert with -m only. */
+