static <A> A foldl_noSeed(F2<A, A, A> f, Iterable<A> l) {
  ret foldl_noSeed((O) f, l);
}

static <A> A lambda0Like foldl_noSeed(IF2<A, A, A> f, Iterable<A> l) {
  Iterator<A> it = iterator(l);
  if (!it.hasNext()) null;
  A a = it.next();
  while (it.hasNext())
    a = f.get(a, it.next());
  ret a;
}

static <A> A foldl_noSeed(IF2<A, A, A> f, A... l) {
  ret foldl_noSeed(f, asList(l));
}

static <A> A foldl_noSeed(O f, Iterable<A> l) {
  Iterator<A> it = iterator(l);
  if (!it.hasNext()) null;
  A a = it.next();
  while (it.hasNext())
    a = (A) callF(f, a, it.next());
  ret a;
}

Began life as a copy of #1016515