[turbofan] Add support for keyed access to named properties.

src/factory.cc

 // Copyright 2014 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/factory.h"
 
 #include "src/allocation-site-scopes.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
@@ skipping 226 matching lines @@
   return InternalizeStringWithKey(&key);
 }
 
 
 template<class StringTableKey>
 Handle<String> Factory::InternalizeStringWithKey(StringTableKey* key) {
   return StringTable::LookupKey(isolate(), key);
 }
 
 
+Handle<Name> Factory::InternalizeName(Handle<Name> name) {
+  if (name->IsUniqueName()) return name;
+  return InternalizeString(Handle<String>::cast(name));
+}
+
+
 MaybeHandle<String> Factory::NewStringFromOneByte(Vector<const uint8_t> string,
                                                   PretenureFlag pretenure) {
   int length = string.length();
   if (length == 1) return LookupSingleCharacterStringFromCode(string[0]);
   Handle<SeqOneByteString> result;
   ASSIGN_RETURN_ON_EXCEPTION(
       isolate(),
       result,
       NewRawOneByteString(string.length(), pretenure),
       String);
@@ skipping 2127 matching lines @@
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 }  // namespace internal
 }  // namespace v8