Function value_to_json

subprojects/llama.cpp/common/jinja/value.cpp:1300–1305

}

std::string value_to_json(const value & val, int indent, const std::string_view item_sep, const std::string_view key_sep) {
    std::ostringstream oss;
    value_to_json_internal(oss, val, 0, indent, item_sep, key_sep);
    JJ_DEBUG("value_to_json: result=%s", oss.str().c_str());
    return oss.str();
}

// TODO: avoid circular references
std::string value_to_string_repr(const value & val) {