diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug730888.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug730888.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+
+(function() {
+    for (var i = 0; i < 64; ++i) {
+        var name;
+        switch (this) {
+            case 0: name = 'firstAttr'; break;
+            case 1: name = 'secondAttr'; 
+            case 2: name = 'thirdAttr'; break;
+        }
+        switch (name) {
+          case 'firstAttr': assertEq(result, 'value'); break;
+        }
+    }
+})();