Splitting DescriptorArray::CopyInsert into CopyInsert and CopyReplace.

src/runtime.cc

 // 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 2163 matching lines @@
     DescriptorArray* instance_desc = function->map()->instance_descriptors();
     int index = instance_desc->Search(name);
     ASSERT(index != DescriptorArray::kNotFound);
     PropertyDetails details = instance_desc->GetDetails(index);
     CallbacksDescriptor new_desc(name,
         instance_desc->GetValue(index),
         static_cast<PropertyAttributes>(details.attributes() | READ_ONLY),
         details.index());
     // Construct a new field descriptors array containing the new descriptor.
     DescriptorArray* new_descriptors;
-    { MaybeObject* maybe_descriptors = instance_desc->CopyInsert(&new_desc);
+    { MaybeObject* maybe_descriptors =
+          instance_desc->CopyReplace(&new_desc, index);
       if (!maybe_descriptors->To(&new_descriptors)) return maybe_descriptors;
     }
     // Create a new map featuring the new field descriptors array.
     Map* new_map;
     { MaybeObject* maybe_map =
           function->map()->CopyReplaceDescriptors(new_descriptors);
       if (!maybe_map->To(&new_map)) return maybe_map;
     }
     function->set_map(new_map);
   } else {  // Dictionary properties.
@@ skipping 11516 matching lines @@
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "Runtime::PerformGC");
   }
 }
 
 
 } }  // namespace v8::internal