[modules] Remove @@iterator on namespace objects.

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index be72b78269e5eeb1d3242a2f1aabd584d5e65872..45ae725213978b37286da3f6b4c6f4abd0ad4d88 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -142,9 +142,6 @@ void HeapObject::HeapObjectVerify() {
     case JS_MODULE_NAMESPACE_TYPE:
       JSModuleNamespace::cast(this)->JSModuleNamespaceVerify();
       break;
-    case JS_FIXED_ARRAY_ITERATOR_TYPE:
-      JSFixedArrayIterator::cast(this)->JSFixedArrayIteratorVerify();
-      break;
     case JS_SET_TYPE:
       JSSet::cast(this)->JSSetVerify();
       break;
@@ -1038,16 +1035,6 @@ void JSModuleNamespace::JSModuleNamespaceVerify() {
   VerifyPointer(module());
 }
 
-void JSFixedArrayIterator::JSFixedArrayIteratorVerify() {
-  CHECK(IsJSFixedArrayIterator());
-
-  VerifyPointer(array());
-  VerifyPointer(initial_next());
-  VerifySmiField(kIndexOffset);
-
-  CHECK_LE(index(), array()->length());
-}
-
 void ModuleInfoEntry::ModuleInfoEntryVerify() {
   Isolate* isolate = GetIsolate();
   CHECK(IsModuleInfoEntry());