static int getIntOpt(L c, int i) {
  ret toIntOpt(get(c, i));
}

static int getIntOpt(Map map, O key) {
  ret toIntOpt(mapGet(map, key));
}

static int getIntOpt(O o, S field, int defaultValue default 0) {
  ret toIntOpt(getOpt(o, field), defaultValue);
}

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

Began life as a copy of #1008949