Version 3.26.8 (based on bleeding_edge revision r20532)

Yet another regression test for range analysis (issue 3204).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@20554 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/trunk' into trunk