static @NotNull WrapperDescription computeNext(@NotNull String fqn,
                                                   @Nullable WrapperDescription description) {
      return new WrapperDescription(fqn,
                                    description != null ? description.myUsagesCount : 0);
    }
static @NotNull WrapperDescription computeNext(@NotNull String fqn,
                                                   @Nullable WrapperDescription description)