Review Request 126737: Fix most Clazy warnings in KItemViews.

[Andrey Cygankov]

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https://git.reviewboard.kde.org/r/126737/
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Review request for KDE Frameworks and Aleix Pol Gonzalez.


Repository: kitemviews


Description
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Fix Clazy warnings, except:
/src/kwidgetitemdelegatepool.cpp:153:5: warning: Calling qDeleteAll with QHash::keys, call qDeleteAll on the container itself [-Wclazy-qdeleteall]
    qDeleteAll(d->widgetInIndex.keys());


Diffs
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  autotests/klistwidgetsearchlinetest.cpp b86d62c 
  src/kcategorizedview.cpp 185c24c 
  src/ktreewidgetsearchline.cpp b721c58 
  tests/kcategorizedviewtest.cpp 16dac9a 
  tests/ktreewidgetsearchlinetest.cpp adaf246 
  tests/kwidgetitemdelegatetest.cpp d4bba7a 

Diff: https://git.reviewboard.kde.org/r/126737/diff/


Testing
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Build without errors.
Tests passed.


Thanks,

Andrey Cygankov

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