[PATCH v4 0/2] MR5222: kernelbase: Allow WriteProcessMemory to succeed on PAGE_EXECUTE_READ.

[Marc-Aurel Zent (＠mzent)]

More details here: https://devblogs.microsoft.com/oldnewthing/20181206-00/?p=100415

However it does not mention that `PAGE_NOACCESS` and `PAGE_READONLY` still result in an error on Windows, which is properly implemented in this MR.

Only `WriteProcessMemory` offers this "service", `NtWriteVirtualMemory` will fail on non-writeable and executable regions (and already does so, except for the the mach server backend, which needs https://gitlab.winehq.org/wine/wine/-/merge_requests/4826 to also behave correctly here).

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  v4: kernelbase: Flush instruction cache in WriteProcessMemory.
      kernelbase: Allow WriteProcessMemory to succeed on PAGE_EXECUTE and PAGE_EXECUTE_READ.

https://gitlab.winehq.org/wine/wine/-/merge_requests/5222