Fix some qdoc-warnings.

qtbase/src/corelib/io/qdatastream.cpp:501: warning: Undocumented enum item 'Qt_5_6' in QDataStream::Version
qtbase/src/corelib/itemmodels/qitemselectionmodel.cpp:1764: warning: Undocumented parameter 'model' in QItemSelectionModel::setModel()
qtbase/src/corelib/statemachine/qabstractstate.cpp:216: warning: Undocumented parameter 'active' in QAbstractState::activeChanged()
qtbase/src/corelib/statemachine/qstatemachine.cpp:3262: warning: Undocumented parameter 'running' in QStateMachine::runningChanged()
qtbase/src/corelib/tools/qchar.cpp:160: warning: Undocumented enum item 'Unicode_7_0' in QChar::UnicodeVersion
qtbase/src/gui/image/qimagereader.cpp:1168: warning: Undocumented parameter 'enabled' in QImageReader::setAutoTransform()
qtbase/src/gui/image/qimagewriter.cpp:621: warning: Undocumented parameter 'transform' in QImageWriter::setTransformation()
qtbase/src/gui/itemmodels/qstandarditemmodel.cpp:1268: warning: Undocumented parameter 'tristate' in QStandardItem::setAutoTristate()
qtbase/src/gui/kernel/qscreen.cpp:590: warning: Undocumented parameter 'orientation' in QScreen::orientationChanged()
qtbase/src/gui/kernel/qscreen.cpp:599: warning: Undocumented parameter 'orientation' in QScreen::primaryOrientationChanged()
qtbase/src/gui/text/qtextdocument.cpp:1455: warning: No such parameter 'from' in QTextDocument::find()
qtbase/src/gui/text/qtextdocument.cpp:533: warning: Undocumented parameter 'option' in QTextDocument::setDefaultTextOption()
qtbase/src/widgets/itemviews/qtableview.cpp:2546: warning: Undocumented parameter 'enable' in QTableView::setSortingEnabled()
qtbase/src/widgets/statemachine/qkeyeventtransition.cpp:119: warning: Undocumented parameter 'key' in QKeyEventTransition::setKey()
qtbase/src/widgets/widgets/qplaintextedit.cpp:1610: warning: Can't link to 'toText()'
qtbase/src/opengl/qgl.cpp:4371: warning: No documentation for 'QGLWidget::event()'

Remove the documentation as they are properties:
qtbase/src/widgets/widgets/qfontcombobox.cpp:407: warning: Undocumented parameter 'font' in QFontComboBox::setCurrentFont()
qtbase/src/widgets/widgets/qfontcombobox.cpp:403: warning: Undocumented parameter 'script' in QFontComboBox::setWritingSystem()

Change-Id: If599a3ce747bbb8a3418dd973810923b87246371
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>

src/corelib/io/qdatastream.cpp

@@ -526,6 +526,7 @@ void QDataStream::setByteOrder(ByteOrder bo)
     \value Qt_5_3 Same as Qt_5_2
     \value Qt_5_4 Version 16 (Qt 5.4)
     \value Qt_5_5 Same as Qt_5_4
+    \value Qt_5_6 Same as Qt_5_4
     \omitvalue Qt_DefaultCompiledVersion
 
     \sa setVersion(), version()

src/corelib/itemmodels/qitemselectionmodel.cpp

@@ -1764,7 +1764,7 @@ const QAbstractItemModel *QItemSelectionModel::model() const
 /*!
     \since 5.5
 
-    Sets the model. The modelChanged() signal will be emitted.
+    Sets the model to \a model. The modelChanged() signal will be emitted.
 
     \sa model(), modelChanged()
 */

src/corelib/statemachine/qabstractstate.cpp

@@ -217,7 +217,7 @@ bool QAbstractState::active() const
   \fn QAbstractState::activeChanged(bool active)
   \since 5.4
 
-  This signal is emitted when the active property is changed.
+  This signal is emitted when the active property is changed with \a active as argument.
 
   \sa QAbstractState::active, entered(), exited()
 */

src/corelib/statemachine/qstatemachine.cpp

@@ -3263,7 +3263,7 @@ QStateMachine::WrappedEvent::~WrappedEvent()
   \fn QStateMachine::runningChanged(bool running)
   \since 5.4
 
-  This signal is emitted when the running property is changed.
+  This signal is emitted when the running property is changed with \a running as argument.
 
   \sa QStateMachine::running
 */

src/corelib/tools/qchar.cpp

@@ -178,6 +178,7 @@ QT_BEGIN_NAMESPACE
     \value Unicode_6_1  Version 6.1
     \value Unicode_6_2  Version 6.2
     \value Unicode_6_3  Version 6.3  Since Qt 5.3
+    \value Unicode_7_0  Version 7.0  Since Qt 5.5
     \value Unicode_Unassigned  The value is not assigned to any character
                                in version 6.3 of Unicode.
 

src/gui/image/qimagereader.cpp

@@ -1168,9 +1168,10 @@ QImageIOHandler::Transformations QImageReader::transformation() const
 /*!
     \since 5.5
 
-    Sets if images returned by read() should have transformation metadata automatically applied.
+    Determines that images returned by read() should have transformation metadata automatically
+    applied if \a enabled is \c true.
 
-    \sa autoTransform(), transform(), read()
+    \sa autoTransform(), read()
 */
 void QImageReader::setAutoTransform(bool enabled)
 {

src/gui/image/qimagewriter.cpp

@@ -621,7 +621,7 @@ bool QImageWriter::progressiveScanWrite() const
 /*!
     \since 5.5
 
-    Sets the image transformations metadata including orientation.
+    Sets the image transformations metadata including orientation to \a transform.
 
     If transformation metadata is not supported by the image format,
     the transform is applied before writing.

src/gui/itemmodels/qstandarditemmodel.cpp

@@ -1266,7 +1266,8 @@ void QStandardItem::setCheckable(bool checkable)
 */
 
 /*!
-  Sets whether the item is tristate and controlled by QTreeWidget.
+  Determines that the item is tristate and controlled by QTreeWidget if \a tristate
+  is \c true.
   This enables automatic management of the state of parent items in QTreeWidget
   (checked if all children are checked, unchecked if all children are unchecked,
   or partially checked if only some children are checked).

src/gui/kernel/qscreen.cpp

@@ -591,7 +591,7 @@ bool QScreen::isLandscape(Qt::ScreenOrientation o) const
     \fn void QScreen::orientationChanged(Qt::ScreenOrientation orientation)
 
     This signal is emitted when the orientation of the screen
-    changes.
+    changes with \a orientation as an argument.
 
     \sa orientation()
 */
@@ -600,7 +600,7 @@ bool QScreen::isLandscape(Qt::ScreenOrientation o) const
     \fn void QScreen::primaryOrientationChanged(Qt::ScreenOrientation orientation)
 
     This signal is emitted when the primary orientation of the screen
-    changes.
+    changes with \a orientation as an argument.
 
     \sa primaryOrientation()
 */

src/gui/text/qtextdocument.cpp

@@ -533,7 +533,7 @@ QTextOption QTextDocument::defaultTextOption() const
 /*!
     \since 4.3
 
-    Sets the default text option.
+    Sets the default text option to \a option.
 */
 void QTextDocument::setDefaultTextOption(const QTextOption &option)
 {
@@ -1464,7 +1464,7 @@ QTextCursor QTextDocument::find(const QRegExp & expr, int from, FindFlags option
     Returns a cursor with the match selected if a match was found; otherwise
     returns a null cursor.
 
-    If the given \a from cursor has a selection, the search begins after the
+    If the given \a cursor has a selection, the search begins after the
     selection; otherwise it begins at the cursor's position.
 
     By default the search is case-sensitive, and can match text anywhere in the

src/opengl/qgl.cpp

@@ -4354,6 +4354,8 @@ void QGLWidget::resizeOverlayGL(int, int)
 {
 }
 
+/*!\reimp
+ */
 bool QGLWidget::event(QEvent *e)
 {
     Q_D(QGLWidget);

src/widgets/graphicsview/qgraphicswidget.cpp

@@ -304,6 +304,7 @@ void QGraphicsWidget::resize(const QSizeF &size)
 
 /*!
     \fn void QGraphicsWidget::resize(qreal w, qreal h)
+    \overload
 
     This convenience function is equivalent to calling resize(QSizeF(w, h)).
 

src/widgets/itemviews/qtableview.cpp

@@ -2544,7 +2544,7 @@ void QTableView::setColumnHidden(int column, bool hide)
 */
 
 /*!
-  If \a enabled true enables sorting for the table and immediately
+  If \a enable is true, enables sorting for the table and immediately
   trigger a call to sortByColumn() with the current sort section and
   order
  */

src/widgets/statemachine/qkeyeventtransition.cpp

@@ -117,7 +117,7 @@ int QKeyEventTransition::key() const
 }
 
 /*!
-  Sets the key that this key event transition will check for.
+  Sets the \a key that this key event transition will check for.
 */
 void QKeyEventTransition::setKey(int key)
 {

src/widgets/widgets/qfontcombobox.cpp

@@ -400,14 +400,6 @@ void QFontComboBoxPrivate::_q_currentChanged(const QString &text)
     \sa QComboBox, QFont, QFontInfo, QFontMetrics, QFontDatabase, {Character Map Example}
 */
 
-/*!
-    \fn void QFontComboBox::setWritingSystem(QFontDatabase::WritingSystem script)
-*/
-
-/*!
-    \fn void QFontComboBox::setCurrentFont(const QFont &font);
-*/
-
 /*!
     Constructs a font combobox with the given \a parent.
 */

src/widgets/widgets/qplaintextedit.cpp

@@ -1615,7 +1615,7 @@ void QPlainTextEdit::timerEvent(QTimerEvent *e)
 
     Note that the undo/redo history is cleared by this function.
 
-    \sa toText()
+    \sa toPlainText()
 */
 
 void QPlainTextEdit::setPlainText(const QString &text)