Version 3.28.71 (based on bleeding_edge revision r23062)

ToNumber(Symbol) should throw TypeError (issue 3499).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@23064 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/trunk' into trunk