@Override
  protected void processUsagesFlownDownTo(PsiElement element, Processor<? super SliceUsage> uniqueProcessor) {
    SliceUtil.processUsagesFlownDownTo(element, uniqueProcessor, JavaSliceBuilder.create(this));
  }
@Override
  protected void processUsagesFlownDownTo(PsiElement element, Processor<? super SliceUsage> uniqueProcessor)