Also move to SetAddrUnsafe, as is traditional for setting the address of PCC where we do proper checks on branches so we really only have the possibility of executing off the end of the length, and therefore cannot become unrepresentable.
Also move to SetAddrUnsafe, as is traditional for setting the address of PCC where we do proper checks on branches so we really only have the possibility of executing off the end of the length, and therefore cannot become unrepresentable.