@Override
    public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) {
      final PsiElement psiElement = descriptor.getPsiElement();
      if (!(psiElement instanceof PsiFile)) {
        return;
      }

      final String lineSeparator = FileDocumentManager.getInstance().getLineSeparator(null, project);

      final VirtualFile virtualFile = ((PsiFile)psiElement).getVirtualFile();
      if (virtualFile != null) {
        AbstractConvertLineSeparatorsAction.changeLineSeparators(project, virtualFile, lineSeparator);
      }
    }
@Override
    public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor)