Adding hidden values always turned the object slow case because the hidden symbol is not an identifier.  Make sure to keep objects fast case when adding hidden values if possible. Review URL: http://codereview.chromium.org/93004
Adding hidden values always turned the object slow case because the
hidden symbol is not an identifier.  Make sure to keep objects fast
case when adding hidden values if possible.
Review URL: http://codereview.chromium.org/93004

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@1758 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh