Rejig vs annicam

[NBKelly]

Rejigging an aniccam previously wasn't getting a draw. Turns out we just missed out an async and defined it in a weird way to make up for that.

I also changed the is-hand?/is-deck?/is-discard? fn's to be error-wrapped macros using the is' function (this is still black magic to me), so if they're wrong it'll tell us where they're being called rather than where the is-hand?/etc function is.

[NoahTheDuke]

normal is just prints directly from where it's written when there's a failure. is' throws an exception when there's a failure. error-wrapper catches the thrown exception and then prints like normal is, but using the macro's location instead of the function's location. this lets us write normal functions for our helpers and then just use a little macro to expand them into the right calls in the tests. it's not ideal, but clojure.test is a bad test framework so we have to make due.

[NoahTheDuke]

(i'd love to switch us to my test framework lazytest, but we have like 10k lines of test code and i'm not about to do that shit lol)