Express LoadIC extra ic state with LoadIC::State

src/stub-cache.cc

 // Copyright 2012 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/v8.h"
 
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/ast.h"
 #include "src/code-stubs.h"
@@ skipping 541 matching lines @@
       result->VerifyApiCallResultType();
       return *v8::Utils::OpenHandle(*r);
     }
   }
 
   return isolate->heap()->no_interceptor_result_sentinel();
 }
 
 
 static Object* ThrowReferenceError(Isolate* isolate, Name* name) {
-  // If the load is non-contextual, just return the undefined result.
+  // If the load is inside typeof, 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);
-  if (ic.contextual_mode() != CONTEXTUAL) {
+  if (ic.typeof_state() == INSIDE_TYPEOF) {
     return isolate->heap()->undefined_value();
   }
 
   // Throw a reference error.
   Handle<Name> name_handle(name);
   Handle<Object> error =
       isolate->factory()->NewReferenceError("not_defined",
                                             HandleVector(&name_handle, 1));
   return isolate->Throw(*error);
 }
@@ skipping 856 matching lines @@
           Handle<FunctionTemplateInfo>(
               FunctionTemplateInfo::cast(signature->receiver()));
     }
   }
 
   is_simple_api_call_ = true;
 }
 
 
 } }  // namespace v8::internal