Version 3.25.5 (based on bleeding_edge revision r19695)

Fix HConstants with Smi-ranged HeapNumber values (Chromium issue 349878).

Fix issues with JSON stringify replacer array (issues 3200, 3201).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@19696 ce2b1a6d-e550-0410-aec6-3dcde31c8c00