754a6c85
by Reinhold Gschweicher at 2025-10-17T12:27:13+02:00
msxml3/element: Implement removeAttributeNode function.
Implement the function `IXMLDOMElement_removeAttributeNode`.
Check if the given attribute has the element as parent. If so remove it
just like `domelem_remove_qualified_item` does.
Use the fact, that attribute names are unique in elements.
Add unittest to check if `removeAttributeNode` with output variable set
to `NULL` still removes the attribute from the element.