Version 3.27.14 (based on bleeding_edge revision r21505)

Reland "Customized support for feedback on calls to Array." and follow- up fixes (Chromium issues 377198, 377290).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@21507 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/trunk' into trunk