diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug738841.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug738841.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,49 @@
+try {
+    for (let z = 0; z < 1; ++evalcx("[]", newGlobal())) {}
+} catch (e) {}
+try {
+    for (y in [schedulegc(58)]) {
+        b
+    }
+} catch (e) {}
+try {
+    e
+} catch (e) {}
+try {
+    (function() {
+        h
+    }())
+} catch (e) {}
+try {
+    (function() {
+        this.m.f = function() {}
+    }())
+} catch (e) {}
+try {
+    t()
+} catch (e) {}
+try {
+    p
+} catch (e) {}
+try {
+    gc()
+    p
+} catch (e) {}
+try {
+    (function() {
+        for (var v of m) {}
+    }())
+} catch (e) {}
+try {
+    m
+} catch (e) {}
+try {
+    var f = function() {
+        {
+            print(new function(q)("", s))
+            let u
+        }
+    };
+    dis(f);
+    f();
+} catch (e) {}