@Override
  public String getMethodName(PsiVariable variable, PsiExpression expression, PsiType expressionType) {
    String shortcutMappingMethod = StreamRefactoringUtil.getShortcutMappingMethod(variable, expressionType, expression);
    if(shortcutMappingMethod != null) return shortcutMappingMethod;
    return StreamRefactoringUtil.getMapOperationName(variable.getType(), expressionType);
  }
@Override
  public String getMethodName(PsiVariable variable, PsiExpression expression, PsiType expressionType)