In CLJS clojure.test is a synonym for cljs.test

[borkdude]

See https://github.com/clojure/clojurescript/blob/master/src/main/clojure/cljs/analyzer.cljc#L1223 and https://github.com/clojure/clojurescript/blob/master/src/main/clojure/cljs/analyzer.cljc#L2959.

What should probably be done:

Try the clojure.* namespace as is. When not found, fall back on cljs.*.
Then we can add cljs.test in nbb and it should work as required with clojure.test.

In the case of clojure.edn: that is a REAL namespace so it should not be treated as a synonym for cljs.reader.