[test/add :arity-error [try car [macroexpand '[return 1 2 3]]]]
[test/add :arity-error [try car [macroexpand '[if 1 2 3 4]]]]
[test/add :arity-error [try car [macroexpand '[def 1 2 3]]]]
[test/add :arity-error [try car [macroexpand '[set! 1 2 3]]]]
[test/add 8 [constant-fold [macroexpand '[+ 1 1 [* 2 3]]]]]
