TypeofMode replaces TypeofState and ContextualMode.

src/ic/ic.cc

Index: src/ic/ic.cc
diff --git a/src/ic/ic.cc b/src/ic/ic.cc
index 4006f296a10b5503e708c0151866aba8d8756a7b..c1eb803775e2aa0a499bb774a428df137a093cbf 100644
--- a/src/ic/ic.cc
+++ b/src/ic/ic.cc
@@ -2984,19 +2984,18 @@ RUNTIME_FUNCTION(LoadPropertyWithInterceptorOnly) {
 }
 
 
-static Object* ThrowReferenceError(Isolate* isolate, Name* name) {
-  // If the load is non-contextual, just return the undefined result.
+static Object* ThrowReferenceError(Isolate* isolate, LookupIterator* it) {
+  // If it's not load of an undeclared global, just return the undefined result.
   // Note that both keyed and non-keyed loads may end up here.
   HandleScope scope(isolate);
   LoadIC ic(IC::NO_EXTRA_FRAME, isolate, true);
-  if (ic.contextual_mode() != CONTEXTUAL) {
+  if (!ic.IsUndeclaredGlobal(it->GetReceiver())) {
     return isolate->heap()->undefined_value();
   }
 
   // Throw a reference error.
-  Handle<Name> name_handle(name);
   THROW_NEW_ERROR_RETURN_FAILURE(
-      isolate, NewReferenceError(MessageTemplate::kNotDefined, name_handle));
+      isolate, NewReferenceError(MessageTemplate::kNotDefined, it->name()));
 }
 
 
@@ -3022,7 +3021,7 @@ RUNTIME_FUNCTION(LoadPropertyWithInterceptor) {
 
   if (it.IsFound()) return *result;
 
-  return ThrowReferenceError(isolate, Name::cast(args[0]));
+  return ThrowReferenceError(isolate, &it);

[Toon Verwaest, 2015/07/13 12:56:03]

Just inline the helper method here, if it's the only user.

[Igor Sheludko, 2015/07/13 13:08:02]

Done.

 }