Fix various false positives for clojure.test

Closes https://github.com/jonase/eastwood/issues/116
- nothing had to be fixed; only proves that the bug is now absent
Fixes https://github.com/jonase/eastwood/issues/207
Fixes https://github.com/jonase/eastwood/issues/313
[x] You've updated the changelog (if adding/changing user-visible functionality)
[ ] You've updated the readme (if eg adding a new linter)

jonase / eastwood