[PATCH v3 2/3] msxml3/element: do attribute removal ourselfs

[Reinhold Gschweicher]

From: Reinhold Gschweicher

Check if the given attribute has the element as parent. If so remove it
just like `domelem_remove_qualified_item` does.
---
 dlls/msxml3/element.c | 35 +++++++++++++++--------------------
 1 file changed, 15 insertions(+), 20 deletions(-)

diff --git a/dlls/msxml3/element.c b/dlls/msxml3/element.c
index 41ba2493709..c311e327212 100644
--- a/dlls/msxml3/element.c
+++ b/dlls/msxml3/element.c
@@ -1491,35 +1491,30 @@ static HRESULT WINAPI domelem_removeAttributeNode(
     IXMLDOMAttribute** attributeNode)
 {
     domelem *This = impl_from_IXMLDOMElement( iface );
-    DOMNodeType type;
-    HRESULT hr;
-    BSTR attr_name;
-    IXMLDOMNamedNodeMap* attr_map;
+    xmlnode *attr_node;

TRACE("(%p)->(%p %p)\n", This, domAttribute, attributeNode);

if (!domAttribute) {
         return E_INVALIDARG;
     }
-
-    /* check given node type to be an attribute */
-    hr = IXMLDOMNode_get_nodeType((IXMLDOMNode *)domAttribute, &type);
-    if (hr != S_OK) return hr;
-    if (type != NODE_ATTRIBUTE) {
+    attr_node = get_node_obj((IXMLDOMNode*)domAttribute);
+    if (This->node.node != attr_node->node->parent) {
         return E_INVALIDARG;
     }

-    /* get attribute node name and reuse removeNamedItem function */
-    hr = IXMLDOMAttribute_get_nodeName(domAttribute, &attr_name);
-    if (hr != S_OK) return hr;
-    hr = domelem_get_attributes(iface, &attr_map);
-    if (hr != S_OK) return hr;
-    hr = IXMLDOMNamedNodeMap_removeNamedItem(attr_map, attr_name, (IXMLDOMNode **)attributeNode);
-    IXMLDOMNamedNodeMap_Release(attr_map);
-    /* removeNameItem returns S_FALSE if not found,
-     * removeAttributeNode is expected to return E_INVALIDARG */
-    if (hr == S_FALSE) return E_INVALIDARG;
-    return hr;
+    if (attributeNode)
+    {
+        xmlUnlinkNode(attr_node->node );
+        xmldoc_add_orphan(attr_node->node->doc, attr_node->node);
+        *attributeNode = (IXMLDOMAttribute*)create_node(attr_node->node);
+    }
+    else {
+        if (xmlRemoveProp((xmlAttrPtr)attr_node->node) == -1) {
+            return E_INVALIDARG;
+        }
+    }
+    return S_OK;
 }

static HRESULT WINAPI domelem_getElementsByTagName(