Wrap InitializeProperty around SetOwnPropertyIgnoreAttributes and switch over uses

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index a494778a989c3c3963f8ba288b18ec5fa5359b58..861217619a5bcafee8918c86f4aa22347a3a3855 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -2153,6 +2153,13 @@ class JSObject: public JSReceiver {
       StoreFromKeyed store_mode = MAY_BE_STORE_FROM_KEYED,
       ExecutableAccessorInfoHandling handling = DEFAULT_HANDLING);
 
+  static void AddProperty(Handle<JSObject> object,
+                          Handle<Name> key,
+                          Handle<Object> value,
+                          PropertyAttributes attributes,
+                          ValueType value_type = OPTIMAL_REPRESENTATION,
+                          StoreMode mode = ALLOW_AS_CONSTANT);
+
   // Extend the receiver with a single fast property appeared first in the
   // passed map. This also extends the property backing store if necessary.
   static void AllocateStorageForMap(Handle<JSObject> object, Handle<Map> map);
@@ -2750,7 +2757,7 @@ class JSObject: public JSReceiver {
       StrictMode strict_mode);
 
   // Add a property to an object.
-  MUST_USE_RESULT static MaybeHandle<Object> AddProperty(
+  MUST_USE_RESULT static MaybeHandle<Object> AddPropertyInternal(
       Handle<JSObject> object,
       Handle<Name> name,
       Handle<Object> value,