static L collect(Iterable c, S field) {
  ret collectField(c, field);
}

static L mapMethodLike collect(S field, Iterable c) {
  ret collectField(c, field);
}

/*ifclass Concept
static L collect(Class c, S field) {
  ret collect(list(c), field);
}
endif
TODO: make translator ignore stuff in ifclass until resolved
*/