message: [OpenMP] Add check for hot_teams array
  If hot teams are not being used, this code could seg fault without the added
  check, and does so when composability is used in conjunction with nesting.
  The fix prevents the segfault.
diff: @@ -2115,7 +2115,8 @@ int __kmp_fork_call(ident_t *loc, int gtid,
  master_th->th.th_task_state;
  master_th->th.th_task_state_top++;
  #if KMP_NESTED_HOT_TEAMS
  - if (team == master_th->th.th_hot_teams[active_level].hot_team) {
  + if (master_th->th.th_hot_teams &&
  + team == master_th->th.th_hot_teams[active_level].hot_team) {
  // Restore master's nested state if nested hot team
  master_th->th.th_task_state =
  master_th->th
  