Add a few more lit checks

git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@1947 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5
More lit check improvements

git-svn-id: http://address-sanitizer.googlecode.com/svn/trunk@1948 3c3640eb-14a6-2bb8-0b94-e9e73afe33f5