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

src/func-name-inferrer.cc

Index: src/func-name-inferrer.cc
diff --git a/src/func-name-inferrer.cc b/src/func-name-inferrer.cc
index e85e89528297dd27092c1e20d2c132cbd4edc2c8..51ba4ad530912aa7aacba6fa1f76992ad9d1ec5f 100644
--- a/src/func-name-inferrer.cc
+++ b/src/func-name-inferrer.cc
@@ -55,14 +55,16 @@ void FuncNameInferrer::PushEnclosingName(Handle<String> name) {
 
 
 void FuncNameInferrer::PushLiteralName(Handle<String> name) {
-  if (IsOpen() && !isolate()->heap()->prototype_string()->Equals(*name)) {
+  if (IsOpen() &&
+      !String::Equals(isolate()->factory()->prototype_string(), name)) {
     names_stack_.Add(Name(name, kLiteralName), zone());
   }
 }
 
 
 void FuncNameInferrer::PushVariableName(Handle<String> name) {
-  if (IsOpen() && !isolate()->heap()->dot_result_string()->Equals(*name)) {
+  if (IsOpen() &&
+      !String::Equals(isolate()->factory()->dot_result_string(), name)) {
     names_stack_.Add(Name(name, kVariableName), zone());
   }
 }