@Override
    public int getOccurrenceCount(@NotNull CompilerRef element) {
      try {
        int[] result = new int[]{0};
        myIndex.get(JavaCompilerIndices.BACK_USAGES).getData(element).forEach(
          (id, value) -> {
            result[0] += value;
            return true;
          });
        return result[0];
      }
      catch (StorageException e) {
        throw new RuntimeException(e);
      }
    }
@Override
    public int getOccurrenceCount(@NotNull CompilerRef element)