D10857: Change qSort to std::sort in simplifiedUrlList

[Jaime Torres Amate]

jtamate created this revision.
jtamate added reviewers: Frameworks, dfaure.
Restricted Application added a project: Frameworks.
jtamate requested review of this revision.

REVISION SUMMARY
  qSort is depecreated in Qt5.
  But qSort is also quite slow compared to std::sort.
  
  There are 11 more uses of qSort in kio.

TEST PLAN
  Select 50.000 small files and press Shift-Supr.
  With qSort 11% of cpu
  F5730673: qSortOneTime.png <https://phabricator.kde.org/F5730673>
  
  Select 50.000 small files and press Shift-Supr, cancel and press Shift-Supr again.
  With std::sort 3.3% of cpu
  F5730676: stdSortTwoTimes.png <https://phabricator.kde.org/F5730676>

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D10857

AFFECTED FILES
  src/widgets/kdirmodel.cpp

To: jtamate, #frameworks, dfaure
Cc: michaelh
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