Drop support for legacy EntityReference DOM Node type

Drop support for legacy EntityReference DOM Node type
https://bugs.webkit.org/show_bug.cgi?id=149348

Reviewed by Darin Adler.

LayoutTests/imported/w3c:

Rebaseline W3C DOM test now that more checks are passing.

* web-platform-tests/dom/historical-expected.txt:

Source/WebCore:

Drop support for legacy EntityReference DOM Node type.

EntityReference has been dropped from the DOM specification:
- https://dom.spec.whatwg.org/#dom-core-changes

EntityReference is not supported in Firefox:
- https://developer.mozilla.org/en-US/docs/Web/API/EntityReference
- https://developer.mozilla.org/en-US/docs/Web/API/NodeIterator.expandEntityReferences
- https://developer.mozilla.org/en-US/docs/Web/API/TreeWalker.expandEntityReferences

Chrome dropped support for EntityReference a while back (May 2013):
- EntityReference: https://code.google.com/p/chromium/issues/detail?id=226628
- NodeFilter / TreeWalker.expandEntityReferences:
  - https://groups.google.com/a/chromium.org/d/msg/blink-dev/-ZO3eja4maA/86T13XJwQpUJ
  - https://src.chromium.org/viewvc/blink?view=rev&revision=185771

IE also dropped support for EntityReference Nodes:
https://msdn.microsoft.com/library/ff974819(v=vs.85).aspx (Remarks section)

No new tests, already covered by existing test.

* DerivedSources.cpp:
* WebCore.vcxproj/WebCore.vcxproj:
* WebCore.vcxproj/WebCore.vcxproj.filters:
* WebCore.xcodeproj/project.pbxproj:
* bindings/gobject/WebKitDOMPrivate.cpp:
(WebKit::wrap): Deleted.
* bindings/js/JSNodeCustom.cpp:
(WebCore::createWrapperInline): Deleted.
* bindings/objc/DOM.mm:
(kitClass): Deleted.
* bindings/scripts/CodeGeneratorGObject.pm:
(SkipFunction): Skip webkit_dom_document_create_entity_reference until Carlos fixes it.
* dom/Attr.cpp:
(WebCore::Attr::childTypeAllowed):
(WebCore::Attr::childrenChanged): Deleted.
* dom/Attr.h:
* dom/ContainerNode.cpp:
(WebCore::checkAcceptChild): Deleted.
(WebCore::checkAcceptChildGuaranteedNodeTypes): Deleted.
(WebCore::ContainerNode::removeChild): Deleted.
* dom/Document.cpp:
(WebCore::Document::createEntityReference):
(WebCore::Document::createNodeIterator):
(WebCore::Document::createTreeWalker):
(WebCore::Document::createEditingTextNode): Deleted.
(WebCore::Document::importNode): Deleted.
(WebCore::Document::adoptNode): Deleted.
(WebCore::Document::scheduleForcedStyleRecalc): Deleted.
(WebCore::Document::scheduleStyleRecalc): Deleted.
(WebCore::Document::childTypeAllowed): Deleted.
(WebCore::Document::canAcceptChild): Deleted.
* dom/Document.h:
* dom/Document.idl:
* dom/DocumentFragment.cpp:
(WebCore::DocumentFragment::childTypeAllowed): Deleted.
* dom/Element.cpp:
(WebCore::Element::childTypeAllowed): Deleted.
* dom/EntityReference.cpp:
(WebCore::EntityReference::EntityReference):
* dom/EntityReference.h:
* dom/EntityReference.idl:
* dom/Node.cpp:
(WebCore::Node::setNodeValue):
(WebCore::Node::dumpStatistics): Deleted.
(WebCore::Node::childNodes): Deleted.
(WebCore::Node::lastDescendant): Deleted.
(WebCore::Node::isDescendantOf): Deleted.
(WebCore::Node::textContent): Deleted.
(WebCore::Node::ancestorElement): Deleted.
(WebCore::hashPointer): Deleted.
* dom/Node.h:
(WebCore::Node::isDocumentTypeNode): Deleted.
* dom/NodeIterator.cpp:
(WebCore::NodeIterator::NodeIterator):
* dom/NodeIterator.h:
(WebCore::NodeIterator::create):
* dom/NodeIterator.idl:
* dom/Range.cpp:
(WebCore::Range::checkDeleteExtract):
(WebCore::lengthOfContentsInNode): Deleted.
(WebCore::Range::processContentsBetweenOffsets): Deleted.
(WebCore::Range::insertNode): Deleted.
(WebCore::Range::checkNodeWOffset): Deleted.
(WebCore::Range::checkNodeBA): Deleted.
(WebCore::Range::cloneRange): Deleted.
(WebCore::Range::selectNode): Deleted.
(WebCore::Range::selectNodeContents): Deleted.
(WebCore::Range::surroundContents): Deleted.
(WebCore::Range::shadowRoot): Deleted.
(WebCore::Range::pastLastNode): Deleted.
(WebCore::Range::absoluteBoundingBox): Deleted.
(WebCore::Range::absoluteTextRects): Deleted.
* dom/Range.h:
* dom/ShadowRoot.cpp:
(WebCore::ShadowRoot::childTypeAllowed): Deleted.
* dom/Traversal.cpp:
(WebCore::NodeIteratorBase::NodeIteratorBase):
(WebCore::NodeIteratorBase::acceptNode): Deleted.
* dom/Traversal.h:
(WebCore::NodeIteratorBase::expandEntityReferences):
* dom/TreeWalker.cpp:
(WebCore::TreeWalker::TreeWalker):
* dom/TreeWalker.h:
(WebCore::TreeWalker::create):
* dom/TreeWalker.idl:
* editing/MarkupAccumulator.cpp:
(WebCore::MarkupAccumulator::appendStartMarkup): Deleted.
* xml/XPathUtil.cpp:
(WebCore::XPath::isValidContextNode): Deleted.

Source/WebKit2:

Drop handling EntityReference Nodes.

* WebProcess/InjectedBundle/API/mac/WKDOMInternals.mm:
(WebKit::WKDOMNodeClass): Deleted.
* WebProcess/WebPage/ios/WebPageIOS.mm:
(WebKit::isAssistableElement):

LayoutTests:

Drop several outdated DOM compliance tests. Update / Rebaseline others.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@190120 268f45cc-cd09-0410-ab3c-d52691b4dbfc