Disable special handling of flooring division by constant until it is fixed for real.

Added a test to check the various division-like operations more exhaustively.

R=bmeurer@chromium.org, ulan@chromium.org

Review URL: https://codereview.chromium.org/194863002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19852 ce2b1a6d-e550-0410-aec6-3dcde31c8c00