D9167: Improve string handling

[Aleix Pol Gonzalez]

apol created this revision.
apol added a reviewer: Frameworks.
Restricted Application added a project: Frameworks.

REVISION SUMMARY
  Instead of using implicit casts, use the ones we need as suggested for KF5.

TEST PLAN
  Builds, tests pass

REPOSITORY
  R302 KIconThemes

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D9167

AFFECTED FILES
  CMakeLists.txt
  autotests/kiconengine_unittest.cpp
  autotests/kiconloader_benchmark.cpp
  autotests/kiconloader_rcctest.cpp
  autotests/kiconloader_resourcethemetest.cpp
  autotests/kiconloader_unittest.cpp
  src/kicondialog.cpp
  src/kiconeffect.cpp
  src/kiconloader.cpp
  src/kicontheme.cpp
  src/tools/kiconfinder/kiconfinder.cpp

To: apol, #frameworks
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