Check the offset argument of TypedArray.set for fitting into Smi.

R=jkummerow@chromium.org
BUG=340125
LOG=Y

Review URL: https://codereview.chromium.org/145623009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19051 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add per-file OWNERS for MIPS-specific cctests

R=danno@chromium.org

Review URL: https://codereview.chromium.org/148923003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19052 ce2b1a6d-e550-0410-aec6-3dcde31c8c00