Trivial simplification in JSObject::AddDataElement.

src/objects.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <memory>
 #include <sstream>
@@ skipping 15481 matching lines @@
 
   ElementsKind to = value->OptimalElementsKind();
   if (IsHoleyElementsKind(kind) || !object->IsJSArray() || index > old_length) {
     to = GetHoleyElementsKind(to);
     kind = GetHoleyElementsKind(kind);
   }
   to = GetMoreGeneralElementsKind(kind, to);
   ElementsAccessor* accessor = ElementsAccessor::ForKind(to);
   accessor->Add(object, index, value, attributes, new_capacity);
 
-  uint32_t new_length = old_length;
-  Handle<Object> new_length_handle;
   if (object->IsJSArray() && index >= old_length) {
-    new_length = index + 1;
-    new_length_handle = isolate->factory()->NewNumberFromUint(new_length);
-    JSArray::cast(*object)->set_length(*new_length_handle);
+    Handle<Object> new_length =
+        isolate->factory()->NewNumberFromUint(index + 1);
+    JSArray::cast(*object)->set_length(*new_length);
   }
 
   return Just(true);
 }
 
 
 bool JSArray::SetLengthWouldNormalize(uint32_t new_length) {
   if (!HasFastElements()) return false;
   uint32_t capacity = static_cast<uint32_t>(elements()->length());
   uint32_t new_capacity;
@@ skipping 4507 matching lines @@
       // depend on this.
       return DICTIONARY_ELEMENTS;
     }
     DCHECK_LE(kind, LAST_ELEMENTS_KIND);
     return kind;
   }
 }
 
 }  // namespace internal
 }  // namespace v8