Revert "Postpone termination exceptions in debug scope."

This reverts r22144.

TBR=yurys@chromium.org

Review URL: https://codereview.chromium.org/369523002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00