[PointerEvent algorithms] Dispatch of click, auxclick and contextmenu events

[mustaqahmed]

These 3 events used to be MouseEvents: click, auxclick and contextmenu. Currently PE Section 4.2.12.3 Event dispatch overrides the dispatch of these three event types to make them aware of Pointer Capture target changes but the override is on an algorithm in UIEvents which seems missing.

Open question

Do we need to update the event dispatch algorithm in DOM 2.9. Dispatching events before we can precisely define this target override?