Function setup_config_cn

imperative/src/impl/opr_utility.cpp:6–13

// FIXME; setup_config_cn is copied from src/opr/impl/utility.cpp
namespace {
mgb::OperatorNodeConfig setup_config_cn(
        const mgb::OperatorNodeConfig& config_, const mgb::CompNode& cn) {
    auto prev_cn = config_.get_single_comp_node();
    mgb_assert(!prev_cn.valid() || cn == prev_cn);
    auto config = config_;
    config.comp_node(cn);
    return config;
}
}  // namespace
namespace mgb {
namespace opr {