Layouting: Drop compile dependency on BoolAspect

Change-Id: I4068048f470db126a2583d6b1b90245205cfd601
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/libs/utils/aspects.cpp

@@ -1423,6 +1423,16 @@ void BoolAspect::addToLayout(Layouting::LayoutBuilder &builder)
             this, &BoolAspect::volatileValueChanged);
 }
 
+std::function<void (QObject *)> BoolAspect::groupChecker()
+{
+    return [this](QObject *target) {
+        auto groupBox = qobject_cast<QGroupBox *>(target);
+        QTC_ASSERT(groupBox, return);
+        registerSubWidget(groupBox);
+        d->m_groupBox = d->m_groupBox;
+    };
+}
+
 QAction *BoolAspect::action()
 {
     if (hasAction())
@@ -1515,12 +1525,6 @@ void BoolAspect::setLabelPlacement(BoolAspect::LabelPlacement labelPlacement)
     d->m_labelPlacement = labelPlacement;
 }
 
-void BoolAspect::setHandlesGroup(QGroupBox *box)
-{
-    registerSubWidget(box);
-    d->m_groupBox = box;
-}
-
 /*!
     \class Utils::SelectionAspect
     \inmodule QtCreator