[modules] Remove @@iterator on namespace objects.

src/builtins/builtins-iterator.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/builtins/builtins-utils.h"
 #include "src/builtins/builtins.h"
 #include "src/code-stub-assembler.h"
 #include "src/frames-inl.h"
 
 namespace v8 {
 namespace internal {
 
 void Builtins::Generate_IteratorPrototypeIterator(
     compiler::CodeAssemblerState* state) {
   CodeStubAssembler assembler(state);
   assembler.Return(assembler.Parameter(0));
 }
 
-BUILTIN(ModuleNamespaceIterator) {
-  HandleScope scope(isolate);
-  DCHECK_EQ(1, args.length());
-  Handle<Object> receiver = args.at<Object>(0);
-
-  if (!receiver->IsJSModuleNamespace()) {
-    THROW_NEW_ERROR_RETURN_FAILURE(
-        isolate, NewTypeError(MessageTemplate::kIncompatibleMethodReceiver,
-                              isolate->factory()->iterator_symbol(), receiver));
-  }
-  auto ns = Handle<JSModuleNamespace>::cast(receiver);
-
-  Handle<FixedArray> names =
-      KeyAccumulator::GetKeys(ns, KeyCollectionMode::kOwnOnly, SKIP_SYMBOLS)
-          .ToHandleChecked();
-  return *isolate->factory()->NewJSFixedArrayIterator(names);
-}
-
-BUILTIN(FixedArrayIteratorNext) {
-  HandleScope scope(isolate);
-  DCHECK_EQ(1, args.length());
-  Handle<Object> receiver = args.at<Object>(0);
-
-  // It is an error if this function is called on anything other than the
-  // particular iterator object for which the function was created.
-  if (!receiver->IsJSFixedArrayIterator() ||
-      Handle<JSFixedArrayIterator>::cast(receiver)->initial_next() !=
-          *args.target()) {
-    THROW_NEW_ERROR_RETURN_FAILURE(
-        isolate, NewTypeError(MessageTemplate::kIncompatibleMethodReceiver,
-                              isolate->factory()->next_string(), receiver));
-  }
-
-  auto iterator = Handle<JSFixedArrayIterator>::cast(receiver);
-  Handle<Object> value;
-  bool done;
-
-  int index = iterator->index();
-  if (index < iterator->array()->length()) {
-    value = handle(iterator->array()->get(index), isolate);
-    done = false;
-    iterator->set_index(index + 1);
-  } else {
-    value = isolate->factory()->undefined_value();
-    done = true;
-  }
-
-  return *isolate->factory()->NewJSIteratorResult(value, done);
-}
-
 }  // namespace internal
 }  // namespace v8