Rollback of r16286 in trunk branch.

Fix scoping of function declarations in eval inside non-trivial local scope

BUG=v8:2594
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23004022

git-svn-id: https://v8.googlecode.com/svn/trunk@16325 ce2b1a6d-e550-0410-aec6-3dcde31c8c00