[veridex] New veridex improvements.

1) Take the type of the receiver on a getClass call.
2) Dedupe reflection uses in precise hidden API finder.
3) Don't do a cheap check that a method is resolved, in case the app
   itself is defining a blacklisted API.

bug: 77513322
Test: m

(cherry picked from commit 57b2a550)

Change-Id: Ia441a637386b2232cf9d7f71f6a612d476b37041