Optimize code generated for DivI Lithium instruction when handling division
where the result is int32. Also, fix the ARM simulator to give the correct
answer for kMinInt / -1.

TEST=Division tests added to test-assembler-arm.cc
BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/102623003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18445 ce2b1a6d-e550-0410-aec6-3dcde31c8c00