Version 3.29.57 (based on bleeding_edge revision r23848)

ES6: Add support for method shorthand in object literals (issue 3516).

Unbreak FreeBSD build (hopefully) (issue 3548).

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@23850 ce2b1a6d-e550-0410-aec6-3dcde31c8c00