Temporarily disabled optimization for StringWrappers to use native valueOf. (issue 2855)

Fixed crash on function declarations in eval inside non-trivial local scope. (issue 2594)

Rewrote SamplingCircularQueue. (issue 2814)

Fixed hidden properties on object with frozen prototype. (issue 2829)

Fix deoptimization bug. (Chromium issue 274164)

Stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@16300 ce2b1a6d-e550-0410-aec6-3dcde31c8c00