[builtins] HasOwnProperty: handle non-internalized string keys

src/objects.h

 // Copyright 2015 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 7820 matching lines @@
   inline bool IsThin();
   inline bool IsIndirect();
   inline bool IsExternalOneByte();
   inline bool IsExternalTwoByte();
   inline bool IsSequentialOneByte();
   inline bool IsSequentialTwoByte();
   inline bool IsInternalized();
   inline StringRepresentationTag representation_tag();
   inline uint32_t encoding_tag();
   inline uint32_t full_representation_tag();
-  inline uint32_t size_tag();
+  inline bool HasOnlyOneByteChars();
 #ifdef DEBUG
   inline uint32_t type() { return type_; }
   inline void invalidate() { valid_ = false; }
   inline bool valid() { return valid_; }
 #else
   inline void invalidate() { }
 #endif
 
  private:
   uint32_t type_;
@@ skipping 2437 matching lines @@
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #include "src/objects/object-macros-undef.h"
 
 #endif  // V8_OBJECTS_H_