Tiny DescriptorArray cleanup.

src/objects.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2455 matching lines @@
 
   // Initialize or change the enum cache,
   // using the supplied storage for the small "bridge".
   void SetEnumCache(FixedArray* bridge_storage,
                     FixedArray* new_cache,
                     Object* new_index_cache);
 
   // Accessors for fetching instance descriptor at descriptor number.
   inline String* GetKey(int descriptor_number);
   inline Object* GetValue(int descriptor_number);
-  inline Smi* GetDetails(int descriptor_number);
+  inline PropertyDetails GetDetails(int descriptor_number);
   inline PropertyType GetType(int descriptor_number);
   inline int GetFieldIndex(int descriptor_number);
   inline JSFunction* GetConstantFunction(int descriptor_number);
   inline Object* GetCallbacksObject(int descriptor_number);
   inline AccessorDescriptor* GetCallbacks(int descriptor_number);
   inline bool IsProperty(int descriptor_number);
   inline bool IsTransitionOnly(int descriptor_number);
   inline bool IsNullDescriptor(int descriptor_number);
-  inline bool IsDontEnum(int descriptor_number);
 
   class WhitenessWitness {
    public:
     inline explicit WhitenessWitness(DescriptorArray* array);
     inline ~WhitenessWitness();
 
    private:
     IncrementalMarking* marking_;
   };
 
@@ skipping 133 matching lines @@
   }
 
   static int ToDetailsIndex(int descriptor_number) {
     return (descriptor_number << 1) + 1;
   }
 
   static int ToValueIndex(int descriptor_number) {
     return descriptor_number << 1;
   }
 
-  bool is_null_descriptor(int descriptor_number) {
-    return PropertyDetails(GetDetails(descriptor_number)).type() ==
-        NULL_DESCRIPTOR;
-  }
   // Swap operation on FixedArray without using write barriers.
   static inline void NoIncrementalWriteBarrierSwap(
       FixedArray* array, int first, int second);
 
   // Swap descriptor first and second.
   inline void NoIncrementalWriteBarrierSwapDescriptors(
       int first, int second);
 
   FixedArray* GetContentArray() {
     return FixedArray::cast(get(kContentArrayIndex));
@@ skipping 5976 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_