PR 8199 - Can we get patches reviewed?

I would like to see if we can get patches posted to PR 8199 reviewed
ASAP. These patches fix some problems with the lit tool and get the
test suites working for me. I won't be able to contribute any code
until this PR gets resolved.

Patch #1 or Patch #3 on the PR both fix the problem. The difference in
the patches is how ^ and $ are treated in substitution matching. Read
the bug comments for details.