Removing a wrong check....

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 4197 matching lines @@
   // index.
   bool is_array_index() { return is_array_index_; }
 
   bool is_valid() { return is_valid_; }
 
   void invalidate() { is_valid_ = false; }
 
   // Calculated hash value for a string consisting of 1 to
   // String::kMaxArrayIndexSize digits with no leading zeros (except "0").
   // value is represented decimal value.
-  static uint32_t MakeCachedArrayIndex(uint32_t value, int length);
+  static uint32_t MakeArrayIndexHash(uint32_t value, int length);
 
  private:
 
   uint32_t array_index() {
     ASSERT(is_array_index());
     return array_index_;
   }
 
   inline uint32_t GetHash();
 
@@ skipping 223 matching lines @@
   static const int kMaxCachedArrayIndexLength = 7;
 
   // For strings which are array indexes the hash value has the string length
   // mixed into the hash, mainly to avoid a hash value of zero which would be
   // the case for the string '0'. 24 bits are used for the array index value.
   static const int kArrayIndexValueBits = 24;
   static const int kArrayIndexLengthBits =
       kBitsPerInt - kArrayIndexValueBits - kNofHashBitFields;
 
   STATIC_CHECK((kArrayIndexLengthBits > 0));
+  STATIC_CHECK(kMaxArrayIndexSize < (1 << kArrayIndexLengthBits));
 
   static const int kArrayIndexHashLengthShift =
       kArrayIndexValueBits + kNofHashBitFields;
 
   static const int kArrayIndexHashMask = (1 << kArrayIndexHashLengthShift) - 1;
 
   static const int kArrayIndexValueMask =
       ((1 << kArrayIndexValueBits) - 1) << kHashShift;
 
   // Check that kMaxCachedArrayIndexLength + 1 is a power of two so we
@@ skipping 1080 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_