Version 3.27.34.18 (merged r23691)

Enforce correct number comparisons when inlining Array.indexOf.

BUG=407946
LOG=N
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/551393004

git-svn-id: https://v8.googlecode.com/svn/branches/3.27@23819 ce2b1a6d-e550-0410-aec6-3dcde31c8c00