QtCore: De-duplicate vtables, 2024 edition

This de-inlines destuctors of classes whose vtables are proven to be
duplicated by -Wweak-tables using the upcoming headersclean for _p.h
feature.

Since these are all private API classes, we can pick all the way back
to 6.2, and we don't need the comment that the dtor must always stay
empty, like for public classes.

Task-number: QTBUG-45582
Task-number: QTBUG-126219
Pick-to: 6.8
Change-Id: I8c864c0d2ed3ca20d20d5cfc356290eb529edf6c
Reviewed-by:  Alexey Edelev <alexey.edelev@qt.io>

src/corelib/animation/qpropertyanimation.cpp

@@ -58,6 +58,9 @@
 
 QT_BEGIN_NAMESPACE
 
+QPropertyAnimationPrivate::~QPropertyAnimationPrivate()
+    = default;
+
 void QPropertyAnimationPrivate::updateMetaProperty()
 {
     const QObject *target = targetObject.valueBypassingBindings();

src/corelib/animation/qpropertyanimation_p.h

@@ -29,6 +29,7 @@ class QPropertyAnimationPrivate : public QVariantAnimationPrivate
    Q_DECLARE_PUBLIC(QPropertyAnimation)
 public:
     QPropertyAnimationPrivate() : propertyType(0), propertyIndex(-1) { }
+    ~QPropertyAnimationPrivate() override;
 
     void setTargetObjectForwarder(QObject *target) { q_func()->setTargetObject(target); }
     Q_OBJECT_COMPAT_PROPERTY_WITH_ARGS(QPropertyAnimationPrivate, QObject *, targetObject,

src/corelib/animation/qvariantanimation.cpp

@@ -152,6 +152,9 @@ template<> Q_INLINE_TEMPLATE QLineF _q_interpolate(const QLineF &f, const QLineF
 QVariantAnimationPrivate::QVariantAnimationPrivate() : duration(250), interpolator(&defaultInterpolator)
 { }
 
+QVariantAnimationPrivate::~QVariantAnimationPrivate()
+    = default;
+
 void QVariantAnimationPrivate::convertValues(int t)
 {
     auto type = QMetaType(t);

src/corelib/animation/qvariantanimation_p.h

@@ -34,6 +34,7 @@ class QVariantAnimationPrivate : public QAbstractAnimationPrivate
 public:
 
     QVariantAnimationPrivate();
+    ~QVariantAnimationPrivate() override;
 
     static QVariantAnimationPrivate *get(QVariantAnimation *q)
     {

src/corelib/io/qabstractfileengine.cpp

@@ -32,6 +32,9 @@ static QString appendSlashIfNeeded(const QString &path)
     return path;
 }
 
+QAbstractFileEnginePrivate::~QAbstractFileEnginePrivate()
+    = default;
+
 /*!
     \class QAbstractFileEngineHandler
     \inmodule QtCore

src/corelib/io/qabstractfileengine_p.h

@@ -246,7 +246,7 @@ public:
         : fileError(QFile::UnspecifiedError), q_ptr(q)
     {
     }
-    inline virtual ~QAbstractFileEnginePrivate() { }
+    virtual ~QAbstractFileEnginePrivate();
 
     QFile::FileError fileError;
     QString errorString;

src/corelib/itemmodels/qidentityproxymodel.cpp

@@ -8,6 +8,9 @@
 
 QT_BEGIN_NAMESPACE
 
+QIdentityProxyModelPrivate::~QIdentityProxyModelPrivate()
+    = default;
+
 /*!
     \since 4.8
     \class QIdentityProxyModel

src/corelib/itemmodels/qidentityproxymodel_p.h

@@ -29,6 +29,7 @@ public:
     QIdentityProxyModelPrivate()
     {
     }
+    ~QIdentityProxyModelPrivate() override;
 
     QList<QPersistentModelIndex> layoutChangePersistentIndexes;
     QModelIndexList proxyIndexes;

src/corelib/itemmodels/qitemselectionmodel.cpp

@@ -592,6 +592,8 @@ void QItemSelection::split(const QItemSelectionRange &range,
     }
 }
 
+QItemSelectionModelPrivate::~QItemSelectionModelPrivate()
+    = default;
 
 void QItemSelectionModelPrivate::initModel(QAbstractItemModel *m)
 {

src/corelib/itemmodels/qitemselectionmodel_p.h

@@ -31,6 +31,7 @@ public:
     QItemSelectionModelPrivate()
       : currentCommand(QItemSelectionModel::NoUpdate),
         tableSelected(false), tableColCount(0), tableRowCount(0) {}
+    ~QItemSelectionModelPrivate() override;
 
     QItemSelection expandSelection(const QItemSelection &selection,
                                    QItemSelectionModel::SelectionFlags command) const;

src/corelib/kernel/qeventloop.cpp

@@ -14,6 +14,9 @@
 
 QT_BEGIN_NAMESPACE
 
+QEventLoopPrivate::~QEventLoopPrivate()
+    = default;
+
 /*!
     \class QEventLoop
     \inmodule QtCore

src/corelib/kernel/qeventloop_p.h

@@ -30,6 +30,7 @@ public:
         returnCode.storeRelaxed(-1);
         exit.storeRelaxed(true);
     }
+    ~QEventLoopPrivate() override;
 
     QAtomicInt quitLockRef;
 

src/corelib/kernel/qtimer.cpp

@@ -19,6 +19,9 @@ using namespace std::chrono_literals;
 
 QT_BEGIN_NAMESPACE
 
+QTimerPrivate::~QTimerPrivate()
+    = default;
+
 /*!
     \class QTimer
     \inmodule QtCore

src/corelib/kernel/qtimer_p.h

@@ -35,6 +35,7 @@ public:
     {
         intervalDuration.notify();
     }
+    ~QTimerPrivate() override;
 
     static constexpr int INV_TIMER = -1; // invalid timer id
 

src/corelib/mimetypes/qmimetypeparser.cpp

@@ -57,6 +57,9 @@ static const char matchMaskAttributeC[] = "mask";
     \sa QMimeTypeParser
 */
 
+QMimeTypeParser::~QMimeTypeParser()
+    = default;
+
 /*!
     \class QMimeTypeParserBase
     \inmodule QtCore
@@ -69,6 +72,9 @@ static const char matchMaskAttributeC[] = "mask";
     \sa QMimeTypeParser
 */
 
+QMimeTypeParserBase::~QMimeTypeParserBase()
+    = default;
+
 /*!
     \fn virtual bool QMimeTypeParserBase::process(const QMimeType &t, QString *errorMessage) = 0;
     Overwrite to process the sequence of parsed data

src/corelib/mimetypes/qmimetypeparser_p.h

@@ -47,7 +47,7 @@ class QMimeTypeParserBase
 
 public:
     QMimeTypeParserBase() {}
-    virtual ~QMimeTypeParserBase() {}
+    virtual ~QMimeTypeParserBase();
 
     bool parse(QIODevice *dev, const QString &fileName, QString *errorMessage);
 
@@ -86,6 +86,7 @@ class QMimeTypeParser : public QMimeTypeParserBase
 {
 public:
     explicit QMimeTypeParser(QMimeXMLProvider &provider) : m_provider(provider) {}
+    ~QMimeTypeParser() override;
 
 protected:
     inline bool process(const QMimeTypeXMLData &t, QString *) override