html5lib tests

I would like to submit the html5lib parser tests to the testsuite. 
However there is a small licensing problem I would like to address 
before I do so. The html5lib tests are under the MIT license. The W3C 
testsuite in general is not. Is this a problem? I hope it is not. I 
particular I hope it will be acceptable to submit the tests with a 
LICENSE file explaining that the input data and expected result for 
these tests are under {text of MIT license} whilst the surrounding 
infrastructure for running in browsers is under the normal BSD/W3C license?

If this is not possible I suppose it would be necessary to get 
permission form all contributors to relicense the test data. This seems 
like a considerable burden given that the number of contributors has 
been large and new tests are still under development.