ossl_decoder_instance_new_forprov
ossl_decoder_instance_new_forprov(OSSL_DECODER *decoder, void *provctx,
to_obj_inst = ossl_decoder_instance_new_forprov(to_obj, ctx->provctx,
to_obj_inst = ossl_decoder_instance_new_forprov(to_obj, ctx->provctx,