Fix for infinite recursion in evil case

[Maciej Stachowiak]

On Nov 18, 2003, at 8:35 AM, David Faure wrote:

> The attached testcase (from the Mozilla testsuite) is about putting an 
> array as an element of itself (!!!)
> It looped infinitely in toString() - but for some reason, only with 
> KJS_VERBOSE enabled.

I couldn't reproduce the infinite loop in Safari so I'm not merging 
this for now.

  - Maciej

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