Version 3.28.26 (based on bleeding_edge revision r22435)

Ship ES6 Math functions (issue 2938).

Make ToPrimitive throw on symbol wrappers (issue 3442).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@22436 ce2b1a6d-e550-0410-aec6-3dcde31c8c00