Re: [PATCH v7 0/3] MR10025: mshtml/msxml3: Add XMLSerializer, embedded XML declaration handling

[Jacek Caban (＠jacek)]

I created !10063 for MSHTML parts, let's move further MSHTML discussion there. It's mostly extracted from this MR, but I also made headers compatible with winsdk and simplified tests.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10025#note_129297