The AccountIndexRewriter only translates Predicate<AccountState> to
IndexedAccountQuery.
It is much simpler than the ChangeIndexRewriter because for the
account index there are no subindices and all predicates are served by
the index. If a predicates requires a field that is not contained in
the current index schema we would just fail those queries at the
QueryBuilder.
Change-Id: Ib0e8bcba9b475d861b102a8a7c51fcf13a3418ae
Signed-off-by: Edwin Kempin <ekempin@google.com>
c770781892