QDirListing: make the class move-onlyHEADdev

Define both move SMF out-of-line, otherwise MSVC complains that the
private class isn't fully defined at the point of destruction of
std::unique_ptr<QDirListingPrivate>.

Both move SMF are = default'ed; GCC didn't show a warning about this
issue... different implementations, I guess.

"partially-formed" docs boilerplate borrowed from other existing
classes.

Found in API review.

Pick-to: 6.8
Task-number: QTBUG-125859
Change-Id: I98b57a14bd94e407d9bfafa9ef32cf40c978d7df
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

0 files changed, 0 insertions, 0 deletions