Tick processor: improved [Summary] section

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/433043003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22801 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Avoid one repeated property lookup when computing load ICs.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/429053005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22802 ce2b1a6d-e550-0410-aec6-3dcde31c8c00