Implement handlified String::Equals and Name::Equals.

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 "factory.h"
 
 #include "isolate-inl.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 1963 matching lines @@
                                  instance,
                                  instance_template,
                                  pending_exception);
   } else {
     *pending_exception = false;
   }
 }
 
 
 Handle<Object> Factory::GlobalConstantFor(Handle<String> name) {
-  Heap* h = isolate()->heap();
-  if (name->Equals(h->undefined_string())) return undefined_value();
-  if (name->Equals(h->nan_string())) return nan_value();
-  if (name->Equals(h->infinity_string())) return infinity_value();
+  if (String::Equals(name, undefined_string())) return undefined_value();
+  if (String::Equals(name, nan_string())) return nan_value();
+  if (String::Equals(name, infinity_string())) return infinity_value();
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 } }  // namespace v8::internal