ART: Make assembler_test less chatty

Do not save temporaries in case we use a different encoding than
the host assembler.

Bug: 16505797

(cherry picked from commit 54e15de4a3ea869488d50694fa01138901e70c4e)

Change-Id: I9508d9b09d930db70587a69c04bb3c8950339d79
1 file changed