Function get_call_syntax

extlibs/sol3/include/sol/sol.hpp:14539–14549

		}

		inline call_syntax get_call_syntax(lua_State* L, const string_view& key, int index) {
			if (lua_gettop(L) < 1) {
				return call_syntax::dot;
			}
			luaL_getmetatable(L, key.data());
			auto pn = pop_n(L, 1);
			if (lua_compare(L, -1, index, LUA_OPEQ) != 1) {
				return call_syntax::dot;
			}
			return call_syntax::colon;
		}

		inline void script(lua_State* L, lua_Reader reader, void* data, const std::string& chunkname = detail::default_chunk_name(), load_mode mode = load_mode::any) {
			detail::typical_chunk_name_t basechunkname = {};