public static @NotNull String suggestFileName(@NotNull CompositePackagingElement<?> parent, @NonNls @NotNull String prefix, @NonNls @NotNull String suffix) {
    String name = prefix + suffix;
    int i = 2;
    while (findArchiveOrDirectoryByName(parent, name) != null) {
      name = prefix + i++ + suffix;
    }
    return name;
  }
public static @NotNull String suggestFileName(@NotNull CompositePackagingElement<?> parent, @NonNls @NotNull String prefix, @NonNls @NotNull String suffix)