public static @Nullable HashingStrategy<FilePath> getDirtyScopeHashingStrategy(@NotNull AbstractVcs vcs) {
    return vcs.needsCaseSensitiveDirtyScope() ? ChangesUtil.CASE_SENSITIVE_FILE_PATH_HASHING_STRATEGY
                                              : null;
  }
public static @Nullable HashingStrategy<FilePath> getDirtyScopeHashingStrategy(@NotNull AbstractVcs vcs)