private static PsiElement getNextElement(@NotNull final PsiElement expression) {
    final PsiElement whiteSpace = expression.getContainingFile().findElementAt(expression.getTextOffset() + expression.getTextLength());
    PsiElement next = null;
    if (whiteSpace instanceof PsiWhiteSpace) {
      final String whiteSpaceText = whiteSpace.getText();
      if (!whiteSpaceText.contains("\n")) {
        next = whiteSpace.getNextSibling();
        while (next instanceof PsiWhiteSpace && whiteSpaceText.contains("\\")) {
          next = next.getNextSibling();
        }
      }
    }
    else
      next = whiteSpace;

    RemoveUnnecessaryBackslashQuickFix.removeBackSlash(next);
    if (whiteSpace != null) whiteSpace.delete();
    return next;
  }
private static PsiElement getNextElement(@NotNull final PsiElement expression)