Update test 044 for java-8

Jack will create a synthetic default bridge method for interfaces
where there is return-type variance. This changes the output of test
044-proxy very slightly since it ends up choosing the default version
when it is executed.

Test: mma -j40 test-art-host
Change-Id: I4e16eed04b59022e45a80324cd8c8106d21d4aef