[PATCH 0/3] MR1844: win32u/tests: Add some pointer related syscall tests.

[Rémi Bernon]

Pretty much the same as https://gitlab.winehq.org/wine/wine/-/merge_requests/1843, but on win32u side, to figure and validate the syscall entry signatures.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/1844