Handle Delete of element with LookupIterator

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 271a1d99481abfb5967a20fb8523349ab2194de9..fa4c18bd202dc0dea26324b0523c1b5abe07926b 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -1658,6 +1658,8 @@ class JSReceiver: public HeapObject {
   MUST_USE_RESULT static MaybeHandle<Object> DeleteProperty(
       Handle<JSReceiver> object, Handle<Name> name,
       LanguageMode language_mode = SLOPPY);
+  MUST_USE_RESULT static MaybeHandle<Object> DeleteProperty(
+      LookupIterator* it, LanguageMode language_mode);
   MUST_USE_RESULT static MaybeHandle<Object> DeleteElement(
       Handle<JSReceiver> object, uint32_t index,
       LanguageMode language_mode = SLOPPY);
@@ -2325,21 +2327,13 @@ class JSObject: public JSReceiver {
                               Handle<Object> value,
                               PropertyAttributes attributes);
 
-  MUST_USE_RESULT static MaybeHandle<Object> DeleteProperty(
-      Handle<JSObject> object, Handle<Name> name, LanguageMode language_mode);
   MUST_USE_RESULT static MaybeHandle<Object> DeletePropertyWithInterceptor(
-      Handle<JSObject> holder, Handle<JSObject> receiver, Handle<Name> name);
+      LookupIterator* it);
 
   // Deletes an existing named property in a normalized object.
   static void DeleteNormalizedProperty(Handle<JSObject> object,
                                        Handle<Name> name);
 
-  MUST_USE_RESULT static MaybeHandle<Object> DeleteElement(
-      Handle<JSObject> object, uint32_t index, LanguageMode language_mode);
-  MUST_USE_RESULT static MaybeHandle<Object> DeleteElementWithInterceptor(
-      Handle<JSObject> object,
-      uint32_t index);
-
   bool ReferencesObjectFromElements(FixedArray* elements,
                                     ElementsKind kind,
                                     Object* object);
@@ -9989,13 +9983,9 @@ class JSProxy: public JSReceiver {
 
   MUST_USE_RESULT static Maybe<bool> HasPropertyWithHandler(
       Handle<JSProxy> proxy, Handle<Name> name);
-  MUST_USE_RESULT static inline Maybe<bool> HasElementWithHandler(
-      Handle<JSProxy> proxy, uint32_t index);
 
   MUST_USE_RESULT static MaybeHandle<Object> DeletePropertyWithHandler(
       Handle<JSProxy> proxy, Handle<Name> name, LanguageMode language_mode);
-  MUST_USE_RESULT static MaybeHandle<Object> DeleteElementWithHandler(
-      Handle<JSProxy> proxy, uint32_t index, LanguageMode language_mode);
 
   MUST_USE_RESULT Object* GetIdentityHash();