Fix some latin-1 webkit units tests

R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11962035
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13455 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
allocation-site-info.js broken on arm with new changes. Reverting to previous version until diagnosed.
Regress-2185.js test takes too long on slow path when allocation site info is discovered.

BUG=

Review URL: https://codereview.chromium.org/12049003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13456 ce2b1a6d-e550-0410-aec6-3dcde31c8c00