public List<PsiVariable> getVariablesToUnbox() {
      List<PsiVariable> variables = new ArrayList<>();
      for (List<BoxingInfo> infos : myBoxingMap.values()) {
        for (BoxingInfo boxingInfo : infos) {
          if (boxingInfo.myHasReferences && boxingInfo.primitiveReplacementReducesUnnecessaryOperationCount()) {
            variables.add(boxingInfo.myVariable);
          }
        }
      }
      return variables;
    }
public List<PsiVariable> getVariablesToUnbox()