add object Printer for JSArrayIterator

BUG=v8:5635
R=mlippautz@chromium.org, bmeurer@chromium.org

Review-Url: https://codereview.chromium.org/2508433002
Cr-Commit-Position: refs/heads/master@{#41006}

src/objects-printer.cc

@@ -103,6 +103,44 @@ void HeapObject::HeapObjectPrint(std::ostream& os) {  // NOLINT
     TYPED_ARRAYS(PRINT_FIXED_TYPED_ARRAY)
 #undef PRINT_FIXED_TYPED_ARRAY
 
+    case JS_TYPED_ARRAY_KEY_ITERATOR_TYPE:
+    case JS_FAST_ARRAY_KEY_ITERATOR_TYPE:
+    case JS_GENERIC_ARRAY_KEY_ITERATOR_TYPE:
+    case JS_INT8_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_UINT8_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_INT16_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_UINT16_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_INT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_UINT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FLOAT32_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FLOAT64_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_UINT8_CLAMPED_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_SMI_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_DOUBLE_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_GENERIC_ARRAY_KEY_VALUE_ITERATOR_TYPE:
+    case JS_INT8_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_UINT8_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_INT16_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_UINT16_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_INT32_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_UINT32_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FLOAT32_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FLOAT64_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_UINT8_CLAMPED_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_SMI_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_SMI_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_FAST_HOLEY_DOUBLE_ARRAY_VALUE_ITERATOR_TYPE:
+    case JS_GENERIC_ARRAY_VALUE_ITERATOR_TYPE:
+      JSArrayIterator::cast(this)->JSArrayIteratorPrint(os);
+      break;
+
     case FILLER_TYPE:
       os << "filler";
       break;
@@ -953,6 +991,26 @@ void JSTypedArray::JSTypedArrayPrint(std::ostream& os) {  // NOLINT
   JSObjectPrintBody(os, this, !WasNeutered());
 }
 
+void JSArrayIterator::JSArrayIteratorPrint(std::ostream& os) {  // NOLING
+  JSObjectPrintHeader(os, this, "JSArrayIterator");
+
+  InstanceType instance_type = map()->instance_type();
+  std::string type;
+  if (instance_type <= LAST_ARRAY_KEY_ITERATOR_TYPE) {
+    type = "keys";
+  } else if (instance_type <= LAST_ARRAY_KEY_VALUE_ITERATOR_TYPE) {
+    type = "entries";
+  } else {
+    type = "values";
+  }
+
+  os << "\n - type = " << type;
+  os << "\n - object = " << Brief(object());
+  os << "\n - index = " << Brief(index());
+
+  JSObjectPrintBody(os, this);
+}
+
 void JSFixedArrayIterator::JSFixedArrayIteratorPrint(
     std::ostream& os) {  // NOLINT
   JSObjectPrintHeader(os, this, "JSFixedArrayIterator");