Fix compilation errors.

TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/291343006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21454 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Drop gitignore entry for now obsolete test262 archive

BUG=none
R=jkummerow@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/300453003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21455 ce2b1a6d-e550-0410-aec6-3dcde31c8c00