Fix qdoc link warnings after moving a few examples to manual tests

Change-Id: I81a6e9d52e858c3f733d4c527c70408772813b56
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 71f156fff07f6c876941096134f6ee4ac90a9309)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

examples/widgets/doc/src/plugandpaint.qdoc

@@ -116,8 +116,7 @@
     \section1 The MainWindow Class
 
     The \c MainWindow class is a standard QMainWindow subclass, as
-    found in many of the other examples (e.g.,
+    found in many of the other examples. Here, we'll
-    \l{mainwindows/application}{Application}). Here, we'll
     concentrate on the parts of the code that are related to plugins.
 
     \snippet tools/plugandpaint/app/mainwindow.cpp 4

src/corelib/doc/src/objectmodel/signalsandslots.qdoc

@@ -297,7 +297,7 @@
     callbacks, you'd have to find five different names and keep track
     of the types yourself.
 
-    \sa QLCDNumber, QObject::connect(), {Digital Clock Example},
+    \sa QLCDNumber, QObject::connect()
     {Tetrix Example}
 
     \section1 Signals And Slots With Default Arguments

src/corelib/itemmodels/qitemselectionmodel.cpp

@@ -1120,7 +1120,7 @@ void QItemSelectionModelPrivate::_q_modelDestroyed()
     \l{QItemSelectionModel::hasSelection()}{hasSelection}, and
     \l{QItemSelectionModel::currentIndex()}{currentIndex} are meta-object properties.
 
-    \sa {Model/View Programming}, QAbstractItemModel, {Chart Example}
+    \sa {Model/View Programming}, QAbstractItemModel
 */
 
 /*!

src/widgets/doc/snippets/code/src_gui_widgets_qstatusbar.cpp

@@ -4,3 +4,11 @@
 //! [0]
 statusBar()->addWidget(new MyReadWriteIndication);
 //! [0]
+
+//! [1]
+statusBar()->showMessage(tr("Ready"));
+//! [1]
+
+//! [2]
+statusBar()->showMessage(tr("Ready"), 2000);
+//! [2]

src/widgets/doc/src/model-view-programming.qdoc

@@ -2311,10 +2311,8 @@
     \section1 Related Examples
 
     \list
-    \li \l{itemviews/dirview}{Dir View}
     \li \l{itemviews/spinboxdelegate}{Spin Box Delegate}
     \li \l{itemviews/pixelator}{Pixelator}
     \li \l{itemviews/simpletreemodel}{Simple Tree Model}
-    \li \l{itemviews/chart}{Chart}
     \endlist
 */

src/widgets/doc/src/widgets-and-layouts/layout.qdoc

@@ -263,8 +263,8 @@
     \section1 How to Write A Custom Layout Manager
 
     An alternative to manual layout is to write your own layout manager by
-    subclassing QLayout. The \l{layouts/borderlayout}{Border Layout} and
+    subclassing QLayout. The
-    \l{layouts/flowlayout}{Flow Layout} examples show how to do this.
+    \l{layouts/flowlayout}{Flow Layout} example shows how to do this.
 
     Here we present an example in detail. The \c CardLayout class is inspired
     by the Java layout manager of the same name. It lays out the items (widgets

src/widgets/itemviews/qabstractitemview.cpp

@@ -318,7 +318,7 @@ void QAbstractItemViewPrivate::_q_delegateSizeHintChanged(const QModelIndex &ind
     \l{QWidget::update()}{update()} as all painting operations take place on the
     viewport.
 
-    \sa {View Classes}, {Model/View Programming}, QAbstractItemModel, {Chart Example}
+    \sa {View Classes}, {Model/View Programming}, QAbstractItemModel
 */
 
 /*!

src/widgets/itemviews/qtableview.cpp

@@ -1188,7 +1188,7 @@ int QTableViewPrivate::heightHintForIndex(const QModelIndex &index, int hint, QS
     operations between x-coordinates and column indexes.
 
     \sa QTableWidget, {View Classes}, QAbstractItemModel, QAbstractItemView,
-        {Chart Example}, {Pixelator Example}, {Table Model Example}
+        {Pixelator Example}, {Table Model Example}
 */
 
 /*!

src/widgets/itemviews/qtreeview.cpp

@@ -124,8 +124,7 @@ QT_BEGIN_NAMESPACE
     that can be taken for views that are intended to display items with equal heights
     is to set the \l uniformRowHeights property to true.
 
-    \sa QListView, QTreeWidget, {View Classes}, QAbstractItemModel, QAbstractItemView,
+    \sa QListView, QTreeWidget, {View Classes}, QAbstractItemModel, QAbstractItemView
-        {Dir View Example}
 */
 
 

src/widgets/kernel/qlayout.cpp

@@ -57,14 +57,13 @@ static int menuBarHeightForWidth(QWidget *menubar, int w)
     resized to zero size if there is too little space. To support
     children whose heights depend on their widths, implement
     hasHeightForWidth() and heightForWidth(). See the
-    \l{layouts/borderlayout}{Border Layout} and
+    \l{layouts/flowlayout}{Flow Layout} example for
-    \l{layouts/flowlayout}{Flow Layout} examples for
     more information about implementing custom layout managers.
 
     Geometry management stops when the layout manager is deleted.
 
     \sa QLayoutItem, {Layout Management}, {Basic Layouts Example},
-        {Border Layout Example}, {Flow Layout Example}
+        {Flow Layout Example}
 */
 
 

src/widgets/util/qscroller.cpp

@@ -221,9 +221,6 @@ private:
     The scroller uses the global QAbstractAnimation timer to generate its QScrollEvents. This
     can be changed with QScrollerProperties::FrameRate on a per-QScroller basis.
 
-    The \l {Dir View Example} shows one way to use a QScroller with a QTreeView.
-    An example in the \c scroller examples directory also demonstrates QScroller.
-
     Even though this kinetic scroller has a large number of settings available via
     QScrollerProperties, we recommend that you leave them all at their default, platform optimized
     values. Before changing them you can experiment with the \c plot example in

src/widgets/widgets/qdockwidget.cpp

@@ -1286,7 +1286,7 @@ void QDockWidgetPrivate::setWindowState(bool floating, bool unplug, const QRect
     possible to drag the dock widget when undocking. Starting the drag will undock
     the dock widget, but a second drag will be needed to move the dock widget itself.
 
-    \sa QMainWindow, {Dock Widgets Example}
+    \sa QMainWindow
 */
 
 /*!

src/widgets/widgets/qfontcombobox.cpp

@@ -381,7 +381,7 @@ void QFontComboBoxPrivate::_q_currentChanged(const QString &text)
 
     \image windowsvista-fontcombobox.png Screenshot of QFontComboBox on Windows Vista
 
-    \sa QComboBox, QFont, QFontInfo, QFontMetrics, QFontDatabase, {Character Map Example}
+    \sa QComboBox, QFont, QFontInfo, QFontMetrics, QFontDatabase
 */
 
 /*!

src/widgets/widgets/qlcdnumber.cpp

@@ -69,7 +69,7 @@ public:
     Incidentally, QLCDNumber is the very oldest part of Qt, tracing
     its roots back to a BASIC program on the \l{Sinclair Spectrum}{Sinclair Spectrum}.
 
-    \sa QLabel, QFrame, {Digital Clock Example}, {Tetrix Example}
+    \sa QLabel, QFrame, {Tetrix Example}
 */
 
 /*!

src/widgets/widgets/qmainwindow.cpp

@@ -281,7 +281,7 @@ void QMainWindowPrivate::init()
     of the toolbars and dock widgets that are stored.
 
     \sa QMenuBar, QToolBar, QStatusBar, QDockWidget,
-    {Qt Widgets - Application Example}, {Dock Widgets Example},
+    {Qt Widgets - Application Example},
     {MDI Example}, {Menus Example}
 */
 

src/widgets/widgets/qstatusbar.cpp

@@ -151,12 +151,12 @@ QRect QStatusBarPrivate::messageRect() const
 
     Use the showMessage() slot to display a \e temporary message:
 
-    \snippet mainwindows/dockwidgets/mainwindow.cpp 8
+    \snippet code/src_gui_widgets_qstatusbar.cpp 1
 
     To remove a temporary message, use the clearMessage() slot, or set
     a time limit when calling showMessage(). For example:
 
-    \snippet mainwindows/dockwidgets/mainwindow.cpp 3
+    \snippet code/src_gui_widgets_qstatusbar.cpp 2
 
     Use the currentMessage() function to retrieve the temporary
     message currently shown. The QStatusBar class also provide the