ARM: Improve the code generated for HInstanceOf

Test: m test-art-target-run-test-009-instanceof
Test: m test-art-target-run-test-422-instanceof
Test: m test-art-target-run-test-494-checker-instanceof-tests
Test: m test-art-target-run-test-500-instanceof
Test: m test-art-target-run-test-530-instanceof-checkcast
Test: m test-art-target-run-test-603-checker-instanceof
Change-Id: Ia5e1421403605659d0f53bc794acb5e5b0af0c5e
2 files changed