[touch-events] createTouch has all the params as required, should probably have them optional (#58)

https://github.com/w3c/web-platform-tests/blob/master/touch-events/create-touch-touchlist.html#L124 should per spec throw, since not enough params are passed to the method. But instead that test assumes different behavior and it also assumes clientX/Y somehow magically get their values from other coordinates.

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Reply to this email directly or view it on GitHub:
https://github.com/w3c/touch-events/issues/58