CMake: Fix tst_qaddpreroutine to work with static builds

DEFAULT_IF needs to be true so that in a static build the
built plugin is automatically linked into the test executable
using the special static plugin per-repo behavior in
qt_internal_add_executable.

The QtPostProcess routines are not executed for this test project
because we don't use qt_build_repo. This means that no
QtFooPluginCMakeConfig.cmake file is generated and thus there's no
point in using qt6_import_plugins because the pulic plugin genexes
won't know about this target anyway.

Explicitly set the CLASS_NAME so that the name expected by the
Q_IMPORT_PLUGIN macro matches the name of the plugin instance that moc
generates in QT_MOC_EXPORT_PLUGIN.

Amends 22e967c3049608f82abd32a0beb0b4b36ee134bf

Task-number: QTBUG-87580
Task-number: QTBUG-90341
Change-Id: I5ef361e7e2cebc46b35310c679f15c84cd61b4a5
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit 2fccea3b70d8d88ed49cac1c228362a4cf01bb15)
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

0 files changed, 0 insertions, 0 deletions