Move all Copy* methods from descriptor array into the Copy* versions on the map.

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 2537 matching lines @@
                     const WhitenessWitness&,
                     int number_of_set_descriptors);
 
   // Transfer a complete descriptor from the src descriptor array to this
   // descriptor array.
   void CopyFrom(int dst_index,
                 DescriptorArray* src,
                 int src_index,
                 const WhitenessWitness&);
 
-  // Copy the descriptor array, inserting new descriptor. Its enumeration index
-  // is automatically set to the size of the descriptor array to which it was
-  // added first.
-  MUST_USE_RESULT MaybeObject* CopyAdd(Descriptor* descriptor);
-
-  // Copy the descriptor array, replacing a descriptor. Its enumeration index is
-  // kept.
-  MUST_USE_RESULT MaybeObject* CopyReplace(Descriptor* descriptor,
-                                           int insertion_index);
-
   // Indicates whether the search function should expect a sorted or an unsorted
   // descriptor array as input.
   enum SharedMode {
     MAY_BE_SHARED,
     CANNOT_BE_SHARED
   };
 
   // Return a copy of the array with all transitions and null descriptors
   // removed. Return a Failure object in case of an allocation failure.
   MUST_USE_RESULT MaybeObject* Copy(SharedMode shared_mode);
@@ skipping 2327 matching lines @@
                         LookupResult* result);
 
   void LookupTransition(JSObject* holder,
                         String* name,
                         LookupResult* result);
 
   MUST_USE_RESULT MaybeObject* RawCopy(int instance_size);
   MUST_USE_RESULT MaybeObject* CopyWithPreallocatedFieldDescriptors();
   MUST_USE_RESULT MaybeObject* CopyDropDescriptors();
   MUST_USE_RESULT MaybeObject* CopyReplaceDescriptors(
-      DescriptorArray* descriptors, String* name, TransitionFlag flag);
+      DescriptorArray* descriptors,
+      String* name,
+      int last_added,
+      TransitionFlag flag);
   MUST_USE_RESULT MaybeObject* CopyAddDescriptor(Descriptor* descriptor,
                                                  TransitionFlag flag);
   MUST_USE_RESULT MaybeObject* CopyInsertDescriptor(Descriptor* descriptor,
                                                     TransitionFlag flag);
   MUST_USE_RESULT MaybeObject* CopyReplaceDescriptor(Descriptor* descriptor,
                                                      int index,
                                                      TransitionFlag flag);
   MUST_USE_RESULT MaybeObject* CopyAsElementsKind(ElementsKind kind,
                                                   TransitionFlag flag);
 
@@ skipping 3962 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_