1 files changed, 7 insertions, 14 deletions
diff --git a/js/src/builtin/Array.js b/js/src/builtin/Array.js
index 45f90a7b8..30e6fb35f 100644
--- a/js/src/builtin/Array.js
+++ b/js/src/builtin/Array.js
@@ -711,13 +711,14 @@ function CreateArrayIterator(obj, kind) {
 // http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%arrayiteratorprototype%.next
 function ArrayIteratorNext() {
     // Step 1-3.
-    if (!IsObject(this) || !IsArrayIterator(this)) {
+    var obj;
+    if (!IsObject(this) || (obj = GuardToArrayIterator(this)) === null) {
         return callFunction(CallArrayIteratorMethodIfWrapped, this,
                             "ArrayIteratorNext");
     }
 
     // Step 4.
-    var a = UnsafeGetReservedSlot(this, ITERATOR_SLOT_TARGET);
+    var a = UnsafeGetReservedSlot(obj, ITERATOR_SLOT_TARGET);
     var result = { value: undefined, done: false };
 
     // Step 5.
@@ -728,10 +729,10 @@ function ArrayIteratorNext() {
 
     // Step 6.
     // The index might not be an integer, so we have to do a generic get here.
-    var index = UnsafeGetReservedSlot(this, ITERATOR_SLOT_NEXT_INDEX);
+    var index = UnsafeGetReservedSlot(obj, ITERATOR_SLOT_NEXT_INDEX);
 
     // Step 7.
-    var itemKind = UnsafeGetInt32FromReservedSlot(this, ITERATOR_SLOT_ITEM_KIND);
+    var itemKind = UnsafeGetInt32FromReservedSlot(obj, ITERATOR_SLOT_ITEM_KIND);
 
     // Step 8-9.
     var len = IsPossiblyWrappedTypedArray(a)
@@ -740,13 +741,13 @@ function ArrayIteratorNext() {
 
     // Step 10.
     if (index >= len) {
-        UnsafeSetReservedSlot(this, ITERATOR_SLOT_TARGET, null);
+        UnsafeSetReservedSlot(obj, ITERATOR_SLOT_TARGET, null);
         result.done = true;
         return result;
     }
 
     // Step 11.
-    UnsafeSetReservedSlot(this, ITERATOR_SLOT_NEXT_INDEX, index + 1);
+    UnsafeSetReservedSlot(obj, ITERATOR_SLOT_NEXT_INDEX, index + 1);
 
     // Step 16.
     if (itemKind === ITEM_KIND_VALUE) {
@@ -900,11 +901,7 @@ function ArrayToLocaleString(locales, options) {
     if (firstElement === undefined || firstElement === null) {
         R = "";
     } else {
-#if EXPOSE_INTL_API
         R = ToString(callContentFunction(firstElement.toLocaleString, firstElement, locales, options));
-#else
-        R = ToString(callContentFunction(firstElement.toLocaleString, firstElement));
-#endif
     }
 
     // Step 3 (reordered).
@@ -919,11 +916,7 @@ function ArrayToLocaleString(locales, options) {
         // Steps 9.a, 9.c-e.
         R += separator;
         if (!(nextElement === undefined || nextElement === null)) {
-#if EXPOSE_INTL_API
             R += ToString(callContentFunction(nextElement.toLocaleString, nextElement, locales, options));
-#else
-            R += ToString(callContentFunction(nextElement.toLocaleString, nextElement));
-#endif
         }
     }