Enter 'demo = {get length () {return this.a.length;}}' and submit. Read error "TypeError: Cannot read property 'length' of undefined". Reason is that array detection in the formatting code checks the length value. We should probably switch to testing whether length is enumerated instead.
Created attachment 83819 [details] Patch
Comment on attachment 83819 [details] Patch Clearing flags on attachment: 83819 Committed r80628: <http://trac.webkit.org/changeset/80628>
All reviewed patches have been landed. Closing bug.