Currently Wine return S_FALSE when IXMLDOMNamedNodeMap::nextNode()
has run out of attributes to return, but when an XML node has no
attributes at all, it returns S_OK despite setting the nextNode
output parameter to NULL, causing the caller to crash when it
accesses this pointer. Return S_FALSE in this case instead.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=50603Signed-off-by: Damjan Jovanovic <damjan.jov@gmail.com>
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>