Fixed candidate eviction in code flusher. (Chromium issue 159140)

Iterate through all arguments for side effects in Math.min/max. (issue 2444)

Fixed spec violations related to regexp.lastIndex (issue 2437, issue 2438)

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@13155 ce2b1a6d-e550-0410-aec6-3dcde31c8c00