// runnable = Runnable or String (method name)
static Thread newThread(O runnable) {
  ret new BetterThread(_topLevelErrorHandling(toRunnable(runnable)));
}

static Thread newThread(O runnable, S name) {
  if (name == null) name = defaultThreadName();
  ret new BetterThread(_topLevelErrorHandling(toRunnable(runnable)), name);
}

static Thread newThread(S name, O runnable) {
  ret newThread(runnable, name);
}