Aspects: Update of combo box when changing TriState value

Call SelectionAspect::setValue instead of skipping it and calling
BaseAspect::setValue directly. That takes care of updating the combo box
state.

Amends c8829ff5b3

Change-Id: I55e90459c2b54da09883f746b61b19d46acfdf92
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: hjk <hjk@qt.io>

src/libs/utils/aspects.cpp

@@ -1994,7 +1994,7 @@ TriState TriStateAspect::value() const
 
 void TriStateAspect::setValue(TriState value)
 {
-    BaseAspect::setValue(value.toVariant());
+    SelectionAspect::setValue(value.toInt());
 }
 
 void TriStateAspect::setDefaultValue(TriState value)

src/libs/utils/aspects.h

@@ -487,6 +487,7 @@ class QTCREATOR_UTILS_EXPORT TriState
 public:
     TriState() = default;
 
+    int toInt() const { return int(m_value); }
     QVariant toVariant() const { return int(m_value); }
     static TriState fromVariant(const QVariant &variant);