Attempt at pre-calculating replace regexp matches.

src/objects.h

 // Copyright 2006-2009 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 4599 matching lines @@
 
   // Set the content of the array to the content of storage.
   inline void SetContent(FixedArray* storage);
 
   // Casting.
   static inline JSArray* cast(Object* obj);
 
   // Uses handles.  Ensures that the fixed array backing the JSArray has at
   // least the stated size.
   inline void EnsureSize(int minimum_size_of_backing_fixed_array);
+  // As ensure size, but sets length to the required size and ensures that
+  // holes are written above this length.
+  inline void Resize(int minimum_size_of_backing_fixed_array);
 
   // Dispatched behavior.
 #ifdef DEBUG
   void JSArrayPrint();
   void JSArrayVerify();
 #endif
 
   // Number of element slots to pre-allocate for an empty array.
   static const int kPreallocatedArrayElements = 4;
 
@@ skipping 459 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_