[QUnit] broken modules and filters in latest

[QUnit] broken modules and filters in latest

It seems like the latest qunit doesn't have working modules, is this a
known issue? (commit: 57d1a28a9f6c44204d46ad651711beb4f8642117)
Looking at the code, it seems to have been broken due to commit
25c0a978997c8be12c7ea39abf919403a06f7473
The fix is just as simple, adding that one line back in made it work
for me:
http://github.com/zhaoz/qunit/commit/13eec8f1e6dbbde59aa07ee74dd25ca03ba80e87
Without it, the tests do not have the module name prefixed before
them, additionally, the filters don't work since none of the tests can
be checked before hand (they don't have module names yet).
It seems like this was introduced along with asyncTest stuff, which I
have not tested, so I don't know if I broke anything there.
~Ziling Zhao
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