Remove old-style accessor support from runtime.

src/property.h

 // 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.
 
 #ifndef V8_PROPERTY_H_
 #define V8_PROPERTY_H_
 
 #include "isolate.h"
 #include "factory.h"
 #include "types.h"
@@ skipping 327 matching lines @@
 
       case DESCRIPTOR_TYPE:
       case DICTIONARY_TYPE:
         switch (type()) {
           case FIELD:
           case NORMAL:
           case CONSTANT:
             return true;
           case CALLBACKS: {
             Object* callback = GetCallbackObject();
-            return callback->IsAccessorInfo() || callback->IsForeign();
+            ASSERT(!callback->IsForeign());
+            return callback->IsAccessorInfo();
           }
           case HANDLER:
           case INTERCEPTOR:
           case NONEXISTENT:
             UNREACHABLE();
             return false;
         }
     }
     UNREACHABLE();
     return false;
@@ skipping 171 matching lines @@
   JSReceiver* holder_;
   Map* transition_;
   int number_;
   bool cacheable_;
   PropertyDetails details_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_PROPERTY_H_