Reland v8::Private and related APIs

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 690 matching lines @@
 
 
 Handle<Symbol> Factory::NewSymbol() {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateSymbol(),
       Symbol);
 }
 
 
-Handle<Symbol> Factory::NewPrivateSymbol(Handle<Object> name) {
+Handle<Symbol> Factory::NewPrivateSymbol() {
   Handle<Symbol> symbol = NewSymbol();
   symbol->set_is_private(true);
-  if (name->IsString()) {
-    symbol->set_name(*name);
-  } else {
-    DCHECK(name->IsUndefined());
-  }
   return symbol;
 }
 
 
 Handle<Context> Factory::NewNativeContext() {
   Handle<FixedArray> array =
       NewFixedArray(Context::NATIVE_CONTEXT_SLOTS, TENURED);
   array->set_map_no_write_barrier(*native_context_map());
   Handle<Context> context = Handle<Context>::cast(array);
   context->set_js_array_maps(*undefined_value());
@@ skipping 1660 matching lines @@
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 }  // namespace internal
 }  // namespace v8