static long getLongOpt(L c, int i) {
  ret toLongOpt(get(c, i));
}

static long getLongOpt(Map map, O key) {
  ret toLongOpt(mapGet(map, key));
}

static long getLongOpt(O o, S field, long defaultValue default 0) {
  ret toLongOpt(getOpt(o, field), defaultValue);
}

static long mapMethodLike getLongOpt(S field, O o, long defaultValue default 0) {
  ret getLongOpt(o, field, defaultValue);
}

Began life as a copy of #1031604