This test succeeds on Server 2012 and fails on Server 2016/2019.
Investigation on Server 2019 showed that the FSCTL_SET_REPARSE_POINT
input buffer length was 23 instead of less than
REPARSE_DATA_BUFFER_HEADER_SIZE(==8) like ifstest claims. This
suggests that WinFsp is not the problem here, but perhaps some OS
changes between Server 2012 and Server 2016. NOTE that we are still
using the ifstest from Server 2012 HCK, which may account for the
difference.
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