ART: Change test 121-modifiers to use smali

Jack/Jill aren't very happy with broken input.

Bug: 19561685
Test: m test-art-host-run-test-121-modifiers
Test: art/test/run-test --host --jvm 121-modifiers
Change-Id: Iedd825f379a15e78ad1233af43350fd9d2d77889
13 files changed