Use IsPropertyName instead of IsInternalizedString in VisitObjectLiteral.

src/crankshaft/hydrogen.cc

 // Copyright 2013 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/crankshaft/hydrogen.h"
 
 #include <memory>
 #include <sstream>
 
 #include "src/allocation-site-scopes.h"
@@ skipping 5914 matching lines @@
     Literal* key = property->key()->AsLiteral();
     Expression* value = property->value();
 
     switch (property->kind()) {
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         DCHECK(!CompileTimeValue::IsCompileTimeValue(value));
         // Fall through.
       case ObjectLiteral::Property::COMPUTED:
         // It is safe to use [[Put]] here because the boilerplate already
         // contains computed properties with an uninitialized value.
-        if (key->value()->IsInternalizedString()) {
+        if (key->IsPropertyName()) {
           if (property->emit_store()) {
             CHECK_ALIVE(VisitForValue(value));
             HValue* value = Pop();
 
             Handle<Map> map = property->GetReceiverType();
             Handle<String> name = key->AsPropertyName();
             HValue* store;
             FeedbackVectorSlot slot = property->GetSlot();
             if (map.is_null()) {
               // If we don't know the monomorphic type, do a generic store.
@@ skipping 7487 matching lines @@
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 }  // namespace internal
 }  // namespace v8