Current DOMTokenList spec lets add/remove methods to be passed multiple classes. However, the toggle method didn't get such a possibility due to the second boolean  optional parameter.

This is inconsequent and limiting. I propose to change the signature to:

    boolean toggle(DOMString... tokens, optional boolean force);

The change would mean that the `force` parameter is not necessarily the second one but the last one on the list of parameters, e.g. in JavaScript the `force` parameter would be equal to:

    arguments[arguments.length - 1]

within the function body.

Not adding such support would still require libraries like jQuery to patch the classList.toggle method to fulfill its semantics of being able to accept multiple classes.