Prepare push to trunk.  Now working on version 3.17.17.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/13633002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14135 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove extranous holder load in some prototype-chain checking cases

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/13620003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14136 ce2b1a6d-e550-0410-aec6-3dcde31c8c00