o Teach opcode rewriting framework handle several rewriters for
the same opcode.
o Reduce number of times classifier callback is called. It is
redundant to call it just after find_op_rw(), since the last does call it already and can have all results.
o Do immediately opcode rewrite in the ref_opcode_object().
This eliminates additional classifier lookup later on bulk update. For unresolved opcodes the behavior still the same, we save information from classifier callback in the obj_idx array, then perform automatic objects creation, then perform rewriting for opcodes using indeces from created objects.
Obtained from: Yandex LLC
Sponsored by: Yandex LLC