Improve clojure.test support/syntax

[seancorfield]

Right now, the only possible forms are:

(defexpect my-test1 expected actual)
(defexpect my-test2
  (expect expected1 actual1)
  (expect expected2 actual2)
  ...
  (expect expectedN actualN))

You cannot intersperse other code, like you can with clojure.test's is macro and you can't wrap the expect forms in setup or teardown code.

Also, completely undocumented, you can also do this which was never intentional:

(defexpect my-test3
  expected1 actual1
  expected2 actual2
  ...
  expectedN actualN)

I'd like to treat the first case as a special case (and expand it specifically as if it were (defexpect my-test1 (expect expected actual))) and eliminate the third case. The body would then be walked to expand any expect forms found.

[seancorfield]

Implemented in 2.2.0-beta2 as an experimental feature pending more testing in the wild.