Ensure that soft-verification doesn't fail class redefinition.

We were incorrectly returning ERR(FAILS_VERIFICATION) when a
redefinition has a soft-verification failure (e.g. an unknown method).
This was incorrect.

Test: ./test.py --host -j50
Bug: 67425338
Change-Id: I1d2c6716a377a8b5bdc5781fecc2e3795b318cfa
8 files changed