// Find the slot for the keyed element, and return pointer to it, or
// to the first of holes encountered while considering collisions.
// Returns a pointer to the place for the item, or 0 in case of OOM or
// Find the slot for the keyed element, and return pointer to it, or
// to the first of holes encountered while considering collisions.
// Returns a pointer to the place for the item, or 0 in case of OOM or