Turn off optimize-constructed-arrays flag to investigate ARM perf issue

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/14753007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14588 ce2b1a6d-e550-0410-aec6-3dcde31c8c00