Rounded off the tests for getFreeVars(). Caught one more bug this way.
Rounded off the tests for getFreeVars(). Caught one more bug this way.

rocketnia/era,rocketnia/era-cene,rocketnia/era-cene,era-platform/cene,rocketnia/era-cene,era-platform/cene,rocketnia/era,era-platform/cene,rocketnia/era