Test suites for Houdini specs

Hey all,

In the mozilla.dev.platform intent to implement thread for Properties and Values [1] a question came up on where Houdini tests should be stored.

Given that we want to eventually merge the CSSWG tests with web-platform-tests, and the Houdini test suites are new, I suggest we decide here to develop all Houdini test suites in web-platform-tests.

Thanks,

Alan

[1] https://groups.google.com/d/msg/mozilla.dev.platform/CNmJeMkUv88/oLmZacPECAAJ