Ok... to do that we will need a helper to set ReplaceIfExists. It is a BOOL for FileRenameInformation but a flag: FILE_RENAME_REPLACE_IF_EXISTS in Flags for FileRenameInformationEx. That should be ok.
It's the same field so you might just as well always set Flags.
The most sticky issue is that all the FileRenameInformationEx tests have to be marked todo_wine until FileRenameInformationEx support is submitted. Is it possible to conditionally mark a test todo_wine? I wasn't aware that it was.
`todo_wine_if(class == FileRenameInformationEx)`