[modules] Implement @@iterator on namespace objects.

src/objects-printer.cc

 // Copyright 2012 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/objects.h"
 
 #include <iomanip>
 #include <memory>
 
 #include "src/disasm.h"
@@ skipping 175 matching lines @@
       break;
     case WEAK_CELL_TYPE:
       WeakCell::cast(this)->WeakCellPrint(os);
       break;
     case JS_ARRAY_BUFFER_TYPE:
       JSArrayBuffer::cast(this)->JSArrayBufferPrint(os);
       break;
     case JS_TYPED_ARRAY_TYPE:
       JSTypedArray::cast(this)->JSTypedArrayPrint(os);
       break;
+    case JS_FIXED_ARRAY_ITERATOR_TYPE:
+      JSFixedArrayIterator::cast(this)->JSFixedArrayIteratorPrint(os);
+      break;
     case JS_DATA_VIEW_TYPE:
       JSDataView::cast(this)->JSDataViewPrint(os);
       break;
 #define MAKE_STRUCT_CASE(NAME, Name, name) \
   case NAME##_TYPE:                        \
     Name::cast(this)->Name##Print(os);     \
     break;
   STRUCT_LIST(MAKE_STRUCT_CASE)
 #undef MAKE_STRUCT_CASE
 
@@ skipping 736 matching lines @@
 void JSTypedArray::JSTypedArrayPrint(std::ostream& os) {  // NOLINT
   JSObjectPrintHeader(os, this, "JSTypedArray");
   os << "\n - buffer = " << Brief(buffer());
   os << "\n - byte_offset = " << Brief(byte_offset());
   os << "\n - byte_length = " << Brief(byte_length());
   os << "\n - length = " << Brief(length());
   if (WasNeutered()) os << "\n - neutered";
   JSObjectPrintBody(os, this, !WasNeutered());
 }
 
+void JSFixedArrayIterator::JSFixedArrayIteratorPrint(
+    std::ostream& os) {  // NOLINT
+  JSObjectPrintHeader(os, this, "JSFixedArrayIterator");
+  os << "\n - array = " << Brief(array());
+  os << "\n - index = " << index();
+  os << "\n - initial_next = " << Brief(initial_next());
+  JSObjectPrintBody(os, this);
+}
 
 void JSDataView::JSDataViewPrint(std::ostream& os) {  // NOLINT
   JSObjectPrintHeader(os, this, "JSDataView");
   os << "\n - buffer =" << Brief(buffer());
   os << "\n - byte_offset = " << Brief(byte_offset());
   os << "\n - byte_length = " << Brief(byte_length());
   if (WasNeutered()) os << "\n - neutered";
   JSObjectPrintBody(os, this, !WasNeutered());
 }
 
@@ skipping 598 matching lines @@
     printf("Not a transition array\n");
   } else {
     reinterpret_cast<i::TransitionArray*>(object)->Print();
   }
 }
 
 extern void _v8_internal_Print_StackTrace() {
   i::Isolate* isolate = i::Isolate::Current();
   isolate->PrintStack(stdout);
 }