ART: Fix SelectKind to work with nullptr

This patch fixes SelectKind to return kSelectNone
when MIR is nullptr to avoid segmentation fault.

Change-Id: I174ff5c153e03c1a1e2ef8bc68f7fb50e8a9bf3f
Signed-off-by: Chao-ying Fu <chao-ying.fu@intel.com>
1 file changed