Fix induction variable detection.

Review URL: https://codereview.chromium.org/12919005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Move context global handle creation out of Genesis.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/12919009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@13978 ce2b1a6d-e550-0410-aec6-3dcde31c8c00