Bug report about Object.defineProperty

[toshiyuki kojima]

Hello,

Using Object.defineProperty on a object that not inherits Object.prototype,
it cause to crash Nashron.

I confirmed this bug using following revision:

  changeset:   101606d3eb84

  date:        Tue Aug 27 19:26:48 2013 +0530

  summary:     Merge

and following code snippets.
http://jsfiddle.net/gocho/5nwv2/

Sorry for not fix, but report.

--gocho

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