[PATCH 0/1] MR11077: ntdll: Preserve nonvolatile registers across VEH callbacks.

[Soham Nandy (＠natimerry)]

Some VEH pop / modify nonvolatile registers before returning. This is a violation of the calling convention and leaves stale values after the VEH is called.

Call VEHs through a wrapper which saves and restores non volatile registers around the callback. 

This is modified and split up form https://gitlab.winehq.org/wine/wine/-/merge_requests/11069.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/11077