QItemSelectionModel: simplify QItemSelectionRange

Simplify QItemSelectionRange by removing the unneeded
user-defined functions - the compiler can generate them by it's own.

Change-Id: I49c00f937df98bb1ad18057b7bae7a0e06919909
Reviewed-by: David Faure <david.faure@kdab.com>

src/corelib/itemmodels/qitemselectionmodel.cpp

@@ -86,14 +86,6 @@ QT_BEGIN_NAMESPACE
     Constructs an empty selection range.
 */
 
-/*!
-    \fn QItemSelectionRange::QItemSelectionRange(const QItemSelectionRange &other)
-
-    Copy constructor. Constructs a new selection range with the same contents
-    as the \a other range given.
-
-*/
-
 /*!
     \fn QItemSelectionRange::QItemSelectionRange(const QModelIndex &topLeft, const QModelIndex &bottomRight)
 
@@ -230,13 +222,6 @@ bool QItemSelectionRange::intersects(const QItemSelectionRange &other) const
             );
 }
 
-/*!
-    \fn QItemSelectionRange QItemSelectionRange::intersect(const QItemSelectionRange &other) const
-    \obsolete
-
-    Use intersected(\a other) instead.
-*/
-
 /*!
     \fn QItemSelectionRange QItemSelectionRange::intersected(const QItemSelectionRange &other) const
     \since 4.2

src/corelib/itemmodels/qitemselectionmodel.h

@@ -55,18 +55,7 @@ class Q_CORE_EXPORT QItemSelectionRange
 {
 
 public:
-    inline QItemSelectionRange() : tl(), br() {}
-#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
-    // ### Qt 6: remove them all, the compiler-generated ones are fine
-    inline QItemSelectionRange(const QItemSelectionRange &other)
-        : tl(other.tl), br(other.br) {}
-    QItemSelectionRange(QItemSelectionRange &&other) noexcept
-        : tl(std::move(other.tl)), br(std::move(other.br)) {}
-    QItemSelectionRange &operator=(QItemSelectionRange &&other) noexcept
-    { tl = std::move(other.tl); br = std::move(other.br); return *this; }
-    QItemSelectionRange &operator=(const QItemSelectionRange &other)
-    { tl = other.tl; br = other.br; return *this; }
-#endif // Qt < 6
+    QItemSelectionRange() = default;
     QItemSelectionRange(const QModelIndex &topL, const QModelIndex &bottomR) : tl(topL), br(bottomR) {}
     explicit QItemSelectionRange(const QModelIndex &index) : tl(index), br(tl) {}
 
@@ -103,10 +92,6 @@ public:
     }
 
     bool intersects(const QItemSelectionRange &other) const;
-#if QT_DEPRECATED_SINCE(5, 0)
-    inline QItemSelectionRange intersect(const QItemSelectionRange &other) const
-        { return intersected(other); }
-#endif
     QItemSelectionRange intersected(const QItemSelectionRange &other) const;