Prefer non-synthetic methods in Class.getMethod()
Prefer non-synthetic methods in Class.getMethod()

This fixes four failing tests in MethodOverridesTest.

Change-Id: I758a7b914554ff2b03d8ecce1b5df8d502f0b827

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst