Revert of Remove handle wrappers from basic elements accessors (patchset #2...

Revert of Remove handle wrappers from basic elements accessors (patchset #2 id:20001 of https://codereview.chromium.org/934173004/)

Reason for revert:
Breakage

Original issue's description:
> Remove handle wrappers from basic elements accessors
>
> BUG=
> R=yangguo@chromium.org
>
> Committed: https://crrev.com/40b7c513c696f405af0ae3e74e844d3c341bc3f2
> Cr-Commit-Position: refs/heads/master@{#26736}

TBR=yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/932693003

Cr-Commit-Position: refs/heads/master@{#26737}

src/builtins.cc

@@ -666,7 +666,7 @@ BUILTIN(ArraySlice) {
     bool packed = true;
     ElementsAccessor* accessor = ElementsAccessor::ForKind(kind);
     for (int i = k; i < final; i++) {
-      if (!accessor->HasElement(*object, i, *elms)) {
+      if (!accessor->HasElement(object, i, elms)) {
         packed = false;
         break;
       }

src/elements.h

@@ -32,11 +32,15 @@ class ElementsAccessor {
   // in the backing store to use for the check, which must be compatible with
   // the ElementsKind of the ElementsAccessor. If backing_store is NULL, the
   // holder->elements() is used as the backing store.
-  virtual bool HasElement(JSObject* holder, uint32_t key,
-                          FixedArrayBase* backing_store) = 0;
+  virtual bool HasElement(
+      Handle<JSObject> holder,
+      uint32_t key,
+      Handle<FixedArrayBase> backing_store) = 0;
 
-  inline bool HasElement(JSObject* holder, uint32_t key) {
-    return HasElement(holder, key, holder->elements());
+  inline bool HasElement(
+      Handle<JSObject> holder,
+      uint32_t key) {
+    return HasElement(holder, key, handle(holder->elements()));
   }
 
   // Returns the element with the specified key or undefined if there is no such
@@ -63,11 +67,14 @@ class ElementsAccessor {
   // be compatible with the ElementsKind of the ElementsAccessor. If
   // backing_store is NULL, the holder->elements() is used as the backing store.
   MUST_USE_RESULT virtual PropertyAttributes GetAttributes(
-      JSObject* holder, uint32_t key, FixedArrayBase* backing_store) = 0;
+      Handle<JSObject> holder,
+      uint32_t key,
+      Handle<FixedArrayBase> backing_store) = 0;
 
-  MUST_USE_RESULT inline PropertyAttributes GetAttributes(JSObject* holder,
-                                                          uint32_t key) {
-    return GetAttributes(holder, key, holder->elements());
+  MUST_USE_RESULT inline PropertyAttributes GetAttributes(
+      Handle<JSObject> holder,
+      uint32_t key) {
+    return GetAttributes(holder, key, handle(holder->elements()));
   }
 
   // Returns an element's accessors, or NULL if the element does not exist or
@@ -168,7 +175,7 @@ class ElementsAccessor {
     return elements_accessors_[elements_kind];
   }
 
-  static ElementsAccessor* ForArray(FixedArrayBase* array);
+  static ElementsAccessor* ForArray(Handle<FixedArrayBase> array);
 
   static void InitializeOncePerProcess();
   static void TearDown();
@@ -176,7 +183,7 @@ class ElementsAccessor {
  protected:
   friend class SloppyArgumentsElementsAccessor;
 
-  virtual uint32_t GetCapacity(FixedArrayBase* backing_store) = 0;
+  virtual uint32_t GetCapacity(Handle<FixedArrayBase> backing_store) = 0;
 
   // Element handlers distinguish between indexes and keys when they manipulate
   // elements.  Indexes refer to elements in terms of their location in the

src/objects.cc

@@ -731,7 +731,7 @@ MaybeHandle<Object> Object::SetElementWithReceiver(
     if (!done &&
         js_object->elements() != isolate->heap()->empty_fixed_array()) {
       ElementsAccessor* accessor = js_object->GetElementsAccessor();
-      PropertyAttributes attrs = accessor->GetAttributes(*js_object, index);
+      PropertyAttributes attrs = accessor->GetAttributes(js_object, index);
       if ((attrs & READ_ONLY) != 0) {
         return WriteToReadOnlyElement(isolate, receiver, index, value,
                                       language_mode);
@@ -752,7 +752,7 @@ MaybeHandle<Object> Object::SetElementWithReceiver(
   }
   Handle<JSObject> target = Handle<JSObject>::cast(receiver);
   ElementsAccessor* accessor = target->GetElementsAccessor();
-  PropertyAttributes attrs = accessor->GetAttributes(*target, index);
+  PropertyAttributes attrs = accessor->GetAttributes(target, index);
   if ((attrs & READ_ONLY) != 0) {
     return WriteToReadOnlyElement(isolate, receiver, index, value,
                                   language_mode);
@@ -4371,7 +4371,7 @@ Maybe<PropertyAttributes> JSObject::GetElementAttributeWithoutInterceptor(
     Handle<JSObject> object, Handle<JSReceiver> receiver, uint32_t index,
     bool check_prototype) {
   PropertyAttributes attr =
-      object->GetElementsAccessor()->GetAttributes(*object, index);
+      object->GetElementsAccessor()->GetAttributes(object, index);
   if (attr != ABSENT) return maybe(attr);
 
   // Handle [] on String objects.
@@ -8254,7 +8254,7 @@ MaybeHandle<FixedArray> FixedArray::AddKeysFromArrayLike(
 
 MaybeHandle<FixedArray> FixedArray::UnionOfKeys(Handle<FixedArray> first,
                                                 Handle<FixedArray> second) {
-  ElementsAccessor* accessor = ElementsAccessor::ForArray(*second);
+  ElementsAccessor* accessor = ElementsAccessor::ForArray(second);
   Handle<FixedArray> result;
   ASSIGN_RETURN_ON_EXCEPTION(
       first->GetIsolate(), result,

src/runtime/runtime-array.cc

@@ -420,7 +420,7 @@ static void CollectElementIndices(Handle<JSObject> object, uint32_t range,
       uint32_t length = static_cast<uint32_t>(DoubleToInt32(length_num));
       ElementsAccessor* accessor = object->GetElementsAccessor();
       for (uint32_t i = 0; i < length; i++) {
-        if (accessor->HasElement(*object, i)) {
+        if (accessor->HasElement(object, i)) {
           indices->Add(i);
         }
       }
@@ -687,7 +687,7 @@ static bool IterateElements(Isolate* isolate, Handle<JSObject> receiver,
       ElementsAccessor* accessor = receiver->GetElementsAccessor();
       for (uint32_t index = 0; index < length; index++) {
         HandleScope loop_scope(isolate);
-        if (accessor->HasElement(*receiver, index)) {
+        if (accessor->HasElement(receiver, index)) {
           Handle<Object> element;
           ASSIGN_RETURN_ON_EXCEPTION_VALUE(
               isolate, element, accessor->Get(receiver, receiver, index),
@@ -979,7 +979,7 @@ RUNTIME_FUNCTION(Runtime_EstimateNumberOfElements) {
     ElementsAccessor* accessor = array->GetElementsAccessor();
     int holes = 0;
     for (int i = 0; i < length; i += increment) {
-      if (!accessor->HasElement(*array, i, *elements)) {
+      if (!accessor->HasElement(array, i, elements)) {
         ++holes;
       }
     }