The short answer is no, and it's a difficult problem if you are talking about including source files of code modules written in various different programming languages, and still a semi-difficult problem if you are not because of the possibility of lookupstrings appearing in unsual places or being used in unusual ways.
There are however 2 features that exist in TestStand 4.2 that should help with this.
1) Find/Replace in files - If the previous name is fairly unique this should be easy, if it's not then perhaps with clever usage of regular expressions in the search string it should still be doable.
2) Analyzer - this should help you find places that need fixing or that you might have missed doing 1) above.
Hope this helps,
-Doug
