NTFS reparse points return invalid path data strings for mount points (like those in a DFS share)

While investigating MODULES-4934, it was realized that NTFS reparse points inside of DFS mounts were using an inappropriate data structure.

This would result in Puppet::Util::Windows::File.resolve_symlink returning a path string missing the first 4 bytes (and reading an extra 4 bytes of junk data off the end of the buffer).

In short, DFS shares with reparse points never work in Puppet properly. A simple repro scenario is to use a file resource in Puppet to recursively copy from a DFS path (that contains the default hidden reparse point to the host drives C:
Volume Information) like:

file { 'c:/Share1-test':

     ensure  => directory,

     recurse => true,

     source  => '//dfsdemo.local/Puppet/TestShare',

     source_permissions => 'ignore'

 }