Always use the LoadStubCompiler for Load handlers, also for keyedload handlers.

BUG=
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/414443002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22551 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add debugging output to RangeType test.
R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/411873002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22552 ce2b1a6d-e550-0410-aec6-3dcde31c8c00