This is for drivers that do not support depth stencil textures, but
happily support depth stencil renderbuffers.

The user32 msg tests are failing (more than normal) as they still see 'Q' in the down state.

From: Michael Müller <michael@fds-team.de>

ntdll: Avoid one of the calls to getattrlist() when read_directory_getattrlist() checks the case sensitivity of the file system.

Extract a new function, get_dir_case_sensitivity_attr_by_id(), from
get_dir_case_sensitivity_attr().  Call that instead of get_dir_case_sensitivity()
from read_directory_getattrlist().  We get the device and file system IDs from
the same getattrlist() call we're already doing, so that avoids an extra call.