Version 3.26.15 (based on bleeding_edge revision r20740)

Fix result of LCodeGen::DoWrapReceiver for strict functions and builtins (Chromium issue 362128).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@20743 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/trunk' into trunk