Return MaybeHandle from SetElement and DeleteElement.

src/ic.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1208 matching lines @@
 
   // Ignore other stores where the receiver is not a JSObject.
   // TODO(1475): Must check prototype chains of object wrappers.
   if (!object->IsJSObject()) return *value;
 
   Handle<JSObject> receiver = Handle<JSObject>::cast(object);
 
   // Check if the given name is an array index.
   uint32_t index;
   if (name->AsArrayIndex(&index)) {
-    Handle<Object> result =
-        JSObject::SetElement(receiver, index, value, NONE, strict_mode());
-    RETURN_IF_EMPTY_HANDLE(isolate(), result);
+    Handle<Object> result;
+    ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
+        isolate(), result,
+        JSObject::SetElement(receiver, index, value, NONE, strict_mode()));
     return *value;
   }
 
   // Observed objects are always modified through the runtime.
   if (receiver->map()->is_observed()) {
     Handle<Object> result;
     ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
         isolate(), result,
         JSReceiver::SetProperty(
             receiver, name, value, NONE, strict_mode(), store_mode));
@@ skipping 1596 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal