Version 3.30.19 (based on bleeding_edge revision r24889)

Check string literals with escapes in PreParserTraits::GetSymbol() (issue 3606).

only define ARRAYSIZE_UNSAFE for NaCl builds (Chromium issue 405225).

Performance and stability improvements on all platforms.

Cr-Commit-Position: refs/heads/candidates@{#24890}
git-svn-id: https://v8.googlecode.com/svn/trunk@24890 ce2b1a6d-e550-0410-aec6-3dcde31c8c00