Version 3.17.12

Unified kMaxArguments with number of bits used to encode it. (Chromium issue 211741)

Fixed detection of |handle_smi| case in HOptimizedGraphBuilder::HandlePolymorphicCallNamed. (Chromium issue 196583)

Performance and stability improvements on all platforms.

git-svn-id: https://v8.googlecode.com/svn/trunk@13971 ce2b1a6d-e550-0410-aec6-3dcde31c8c00