load ics for js api accessors

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23699002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16543 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Disable map-check relying on cache behavior sensitive to GC-timing

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23892005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16544 ce2b1a6d-e550-0410-aec6-3dcde31c8c00