[PATCH v3] msxml3: Don't unlink the XML declaration when saving document.

[Nikolay Sivov]

This appears to break stuff, example test that we should probably anyway:

---
{
    hr = IXMLDOMDocument_loadXML(doc, _bstr_("<?xml version=\"1.0\"
standalone=\"yes\"?>\r\n<test/>\r\n"), &b);
    ok(hr == S_OK, "got 0x%08x\n", hr);
    ok(b == VARIANT_TRUE, "got %d\n", b);

    hr = CreateStreamOnHGlobal(NULL, TRUE, &stream);
    ok(hr == S_OK, "got 0x%08x\n", hr);

    V_VT(&var) = VT_UNKNOWN;
    V_UNKNOWN(&var) = (IUnknown*)stream;
    hr = IXMLDOMDocument_save(doc, var);
    ok(hr == S_OK, "got 0x%08x\n", hr);

    hr = GetHGlobalFromStream(stream, &global);
    ok(hr == S_OK, "got 0x%08x\n", hr);

    p = GlobalLock(global);
    p[GlobalSize(global)] = 0;

    ok(0, "output %s\n", wine_dbgstr_a(p));
}
---

Test failed: output "<?xml version=\"1.0\" standalone=\"yes\"?>\n<?xml
version=\"1.0\" standalone=\"yes\"?>\n<test/>\n"

This produces duplicate declaration after your change, but is fine with
current wine.