Add some other test code related to detecting comment macros
Begin list of changes for next Eastwood release
fix #63: Correctly determine whether (is ...) expressions are clojure.test

and only issue :suspicious-test warnings if they are clojure.test/is.
This is becoming more important now that core.typed has defined its
own (is ...) expression, which confused the previous implementation
that only looked at forms in the source code, with no name resolution.
Start of changes-detailed.md for next Eastwood release