Otherwise if function is optimized immediately after transition type oracle will be unable to gather enough maps from stub cache and graph builder will emit HLoadNamedGeneric instead of HLoadNamedPolymorphic.

R=fschneider@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9705102

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11085 ce2b1a6d-e550-0410-aec6-3dcde31c8c00