[runtime] Allow generic allocation of sloppy arguments.

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 "src/assert-scope.h"
@@ skipping 5690 matching lines @@
 
   // Tells whether the instance has fast elements that are only Smis.
   inline bool has_fast_smi_elements();
 
   // Tells whether the instance has fast elements.
   inline bool has_fast_object_elements();
   inline bool has_fast_smi_or_object_elements();
   inline bool has_fast_double_elements();
   inline bool has_fast_elements();
   inline bool has_sloppy_arguments_elements();
+  inline bool has_fast_sloppy_arguments_elements();
   inline bool has_fast_string_wrapper_elements();
   inline bool has_fixed_typed_array_elements();
   inline bool has_dictionary_elements();
 
   static bool IsValidElementsTransition(ElementsKind from_kind,
                                         ElementsKind to_kind);
 
   // Returns true if the current map doesn't have DICTIONARY_ELEMENTS but if a
   // map with DICTIONARY_ELEMENTS was found in the prototype chain.
   bool DictionaryElementsInPrototypeChainOnly();
@@ skipping 5064 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_