element.isEqualNode(element): true
element.isEqualNode(identicalElement): true
identicalElement.isEqualNode(element): true
element.isEqualNode(identicalElementWithCapitalizedName): true
element.isEqualNode(elementWithDifferentNamespace): false
element.isEqualNode(elementWithDifferentPrefix): false
element.isEqualNode(elementWithDifferentLocalName): false
element.isEqualNode(elementWithAttribute): false
element.isEqualNode(elementWithAttribute) (after adding non-matching attribute): false
element.isEqualNode(elementWithAttribute) (after adding matching attribute): false
element.isEqualNode(elementWithAttribute) (after removing non-matching attribute): true