Revert "Revert "CHA for interface method.""

This reverts commit 85a1ec13.

It also fixed the issue that's caused by changing an invokeinterface
to an invokevirtual, when the method is the original default interface
method. Since the default interface method is not in any vtable, unless
it's copied and becomes a virtual method.

Test: ART_TEST_JIT=true m -j20 test-art-host-run-test
Change-Id: I627616978690485c66cfca47c234f1504066ea1d