Version 3.24.8

ARM: fix loading of global object in LWrapReceiver (Chromium issue 318420).

Fix a race between concurrent recompilation and OSR (Chromium issue 330046).

Turn off concurrent sweeping (issue 3071).

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@18423 ce2b1a6d-e550-0410-aec6-3dcde31c8c00