spec improvements: - defonce instrumented-vars - s/test/check - better keyword names for check results
spec improvements: - defonce instrumented-vars - s/test/check - better keyword names for check results

Signed-off-by: Rich Hickey <2f3b32171da334ad5d7d0db393d0928eef4308ab@gmail.com>

clojure/spec.alpha,clojure/spec.alpha