https://bugs.webkit.org/show_bug.cgi?id=13287
        Cannot change SELECT to a dynamically created option

        Tests: fast/forms/add-and-remove-option.html
               fast/forms/add-remove-option-modification-event.html
               fast/forms/add-selected-option.html
               fast/forms/select-cache-desynchronization.html

        * dom/ContainerNode.cpp:
        (WebCore::dispatchChildInsertionEvents): Increment DOM tree version. This will happen when
        dispatching DOMSubtreeModified again, but the version should be incremented for event
        listeners to have an up to date view of the DOM.
        (WebCore::dispatchChildRemovalEvents): Ditto.

        * html/HTMLOptionElement.cpp: (WebCore::HTMLOptionElement::insertedIntoTree):
        Make sure that the select element knows about its new selected option.

        * html/HTMLOptionElement.h: Use insertedIntoTree() instead of insertedIntoDocument(),
        because DOM also needs to be updated for forms that are not in document yet. Similar
        problems exist for node removing, but removedFromTree() is called at a wrong time, so
        those problems cannot be fixed without deeper refactoring.

        * html/HTMLSelectElement.cpp:
        (WebCore::HTMLSelectElement::setRecalcListItems): Reset m_activeSelectionAnchorIndex - it
        doesn't make sense to keep the anchor after programmatically changing the selection, and
        keeping it was causing a failure in fast/forms/listbox-selection.html.

        * html/HTMLSelectElement.h: Removed overrides for ContainerNode methods that only called
        base class versions.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@41772 268f45cc-cd09-0410-ab3c-d52691b4dbfc