clang 5.0.1 reports "missing-braces" warnings

/data/mysql-server/mysql-8.0/storage/innobase/clone/clone0api.cc:1852:36: error: suggest braces around
      initialization of subobject [-Werror,-Wmissing-braces]
    Fixup_data::s_config_tables = {"slave_relay_log_info", "slave_worker_info"};
                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                   {                                          }

/data/mysql-server/mysql-8.0/router/src/http/src/kdf_sha_crypt.cc:283:9: error: suggest braces around
      initialization of subobject [-Werror,-Wmissing-braces]
        20, 10, 0,  11, 1, 21, 2, 22, 12, 23, 13, 3,  14, 4, 24, 5,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        {

/data/mysql-server/mysql-8.0/router/src/harness/src/loader.cc:170:42: error: suggest braces around
      initialization of subobject [-Werror,-Wmissing-braces]
const std::array<int, 6> g_fatal_signals{SIGSEGV, SIGABRT, SIGBUS,
                                         ^~~~~~~~~~~~~~~~~~~~~~~~~
                                         {
/usr/include/x86_64-linux-gnu/bits/signum-generic.h:52:18: note: expanded from macro 'SIGSEGV'
#define SIGSEGV         11      /* Invalid access to storage.  */
                        ^