Version 3.28.71.3 (merged r23081)

Fix newly discovered presubmit errors.

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/484643002

git-svn-id: https://v8.googlecode.com/svn/branches/3.28@23151 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Disable handle zapping on 3.28 branch

BUG=318206
LOG=y
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/480043002

git-svn-id: https://v8.googlecode.com/svn/branches/3.28@23153 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Version 3.28.71.5 (merged r23129, r23114)

Rewrite GetAccessor using the LookupIterator

Fix pointer iteration for maps.

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/471433006

git-svn-id: https://v8.googlecode.com/svn/branches/3.28@23373 ce2b1a6d-e550-0410-aec6-3dcde31c8c00