Skip recently added test associated with bug id

BUG=v8:2815
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/21044005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@15968 ce2b1a6d-e550-0410-aec6-3dcde31c8c00