flink names may not be destroyed while there's still a userspace
handle around. Test this by
- exporting an flink name from fd2
- open a gem bo from that name in fd
- close fd2, then open a new drm file (so that the original handle
disappears)
- check whether the same flink name still works
After bf79cb914dbfe848add8bb76cbb8ff89110d29ff, drm uses ENOENT to
report unknown handles buffer objects, update the tests accordingly.
Fixes:
Bug 29794 - some intel_gpu_tools cases fail
https://bugs.freedesktop.org/show_bug.cgi?id=29794
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>