Should serialisation steps throw DataCloneError instead of TypeError in case forStorage is true

[youennf]

Chrome and Safari are throwing DataCloneError in that case (see web-platform-tests/wpt#36567 and WebKit/WebKit#5576).
Should we align spec to the implementations?
This might be applicable to EncodedVideoChunk, EncodedAudioChunk, AudioData and VideoFrame.

[padenot]

Yes, it seems better semantically. We're currently implementing this, and we'll throw a DataCloneError instead, so everybody is aligned.

[dalecurtis]

Thanks for fixing!