Assigns a value into the internal associative array. If it created a new entry, then call maybeRehash to bump the internal counter and maybe rehash.
Value.
Key.
RehashingAA!(int[string]) aa; aa["abc"] = 123; aa["def"] = 456;
Assigns a value into the internal associative array. If it created a new entry, then call maybeRehash to bump the internal counter and maybe rehash.