diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug511214.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug511214.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+eval(1); // avoid global shape change when we call eval below
+function q() {
+  var x = 1;
+  function f() {
+    function g() { 
+      var t=0;
+      for (var i=0; i<3; i++)
+        x = i;
+    };
+    g();
+    eval("var x = 3");
+    g();
+    assertEq(x, 2);
+  }
+  f();
+  assertEq(x, 2);
+}
+q();