Fix a bug in with and catch context allocation.

Fix a bug in with and catch context allocation.

We were only looking one level up the scope chain to decide which
closure to use in the fresh context.  Instead, we should look to the
first non-catch scope.

R=vegorov@chromium.org
BUG=1528
TEST=regress-1528

Committed: http://code.google.com/p/v8/source/detail?r=8523

[Vyacheslav Egorov (Chromium), 2011-07-04 09:32:00]

LGTM