to be independent of the order of the properties in the JSON
string.

Reenabled the disabled debug tests.

http://code.google.com/p/v8/issues/detail?id=21


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@151 ce2b1a6d-e550-0410-aec6-3dcde31c8c00