Version 3.21.4

Lowered kInitialMaxFastElementArray constant to 95K (issue 2790).

Use signals for cpu profiling on Mac OS X (issue 2814).

Deprecated CpuProfileNode::GetSelfSamplesCount (Chromium issue 267595).

Added support for higher CPU profiler sampling rate on posix systems (issue 2814).

Worked around 'inlining failed' build error with older GCC 4.x releases.

Added source map support to tick processor.

Stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@16338 ce2b1a6d-e550-0410-aec6-3dcde31c8c00