Followup r89853, tweaks for jquery.qunit.completenessTest:

Followup r89853, tweaks for jquery.qunit.completenessTest:
* Don't assume $ as a global, but alias it to jQuery instead. The code is already wrapped in a closure so this is easy
* Remove unused constants TYPE_SIMPLEFUNC and TYPE_OBJCONSTRFUNC
* Fix spelling in comments, mostly brake->break
* Fix whitespace
* Kill useless return at the end of a void function
* Correct comment in hasTests() which claims the function does the opposite of what it really does