[clazy] [Bug 393039] New: Warn about using QStringLiteral for empty strings

[Roman]

https://bugs.kde.org/show_bug.cgi?id=393039

            Bug ID: 393039
           Summary: Warn about using QStringLiteral for empty strings
           Product: clazy
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: dismine at gmail.com
                CC: smartins at kde.org
  Target Milestone: ---

According to this article
http://blog.qt.io/blog/2014/06/13/qt-weekly-13-qstringliteral/ it's not
recommended to use QStringLiteral for empty strings.

> Do not use QStringLiteral for empty strings.
> Prefer QString() over QStringLiteral("")
> The default constructor for QString is cheaper in terms of both instructions and memory.

QStringLiteral() seems to also works.

Hope this information is still relevant.

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