D26009: KCoreAddons: fix compilation with qtbase git dev branch

[David Faure]

dfaure created this revision.
Herald added a project: Frameworks.
Herald added a subscriber: kde-frameworks-devel.
dfaure requested review of this revision.

REVISION SUMMARY
  - Remove unneeded endl in qDebug-like statements
  - Include <QList>, forward-decl doesn't work anymore, now that it's a typedef.
  - Ifdef out local QStringList::operator+=(QString), QVector provides this in Qt 6
  
  This happened more or less by accident, I don't plan on doing this
  across more frameworks at this point.

TEST PLAN
  Builds

REPOSITORY
  R244 KCoreAddons

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D26009

AFFECTED FILES
  src/desktoptojson/desktoptojson.cpp
  src/lib/kaboutdata.h
  src/lib/plugin/kpluginloader.cpp
  src/lib/text/kmacroexpander.cpp
  src/lib/util/kuser.h

To: dfaure
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns
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