Doc: Fix misc. documentation errors

Change-Id: I9481ed452922ed5ecd159a8f60d7fbcb3683cec1
Reviewed-by: Kim M. Kalland <kim.kalland@nokia.com>

src/gui/accessible/qaccessible2.cpp

@@ -220,13 +220,6 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
-    \fn void QAccessibleEditableTextInterface::setAttributes(int startOffset, int endOffset, const QString &attributes)
-
-    \sa QAccessibleTextInterface::attributes()
-*/
-
-/*!
-    \class QAccessibleValueInterface
     \class QAccessibleValueInterface
     \inmodule QtGui
     \ingroup accessibility

src/gui/accessible/qaccessiblebridge.cpp

@@ -82,17 +82,11 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
-    \fn void QAccessibleBridge::notifyAccessibilityUpdate(int reason, QAccessibleInterface *interface, int child)
+    \fn void QAccessibleBridge::notifyAccessibilityUpdate(QAccessibleEvent *event)
 
     This function is called by Qt to notify the bridge about a change
-    in the accessibility information for object wrapped by the given
-    \a interface.
-
-    \a reason specifies the cause of the change. It can take values
-    of type QAccessible::Event.
-
-    \a child is the (1-based) index of the child element that has
-    changed. When \a child is 0, the object itself has changed.
+    in the accessibility information. The \a event specifies the interface,
+    object, reason and child element that has changed.
 
     \sa QAccessible::updateAccessibility()
 */

src/gui/image/qpixmapcache.cpp

@@ -67,7 +67,7 @@ QT_BEGIN_NAMESPACE
     or with a QPixmapCache::Key that the cache generates.
     Using QPixmapCache::Key for keys is faster than using strings. The string API is
     very convenient for complex keys but the QPixmapCache::Key API will be very
-    efficient and convenient for a one-to-one object-to-pixmap mapping \mdash in
+    efficient and convenient for a one-to-one object-to-pixmap mapping - in
     this case, you can store the keys as members of an object.
 
     If two pixmaps are inserted into the cache using equal keys then the

src/gui/image/qpnghandler.cpp

@@ -486,9 +486,6 @@ static void CALLBACK_CALL_TYPE qt_png_warning(png_structp /*png_ptr*/, png_const
 #endif
 
 
-/*!
-    \internal
-*/
 void Q_INTERNAL_WIN_NO_THROW QPngHandlerPrivate::readPngTexts(png_info *info)
 {
     png_textp text_ptr;
@@ -516,9 +513,6 @@ void Q_INTERNAL_WIN_NO_THROW QPngHandlerPrivate::readPngTexts(png_info *info)
 }
 
 
-/*!
-    \internal
-*/
 bool Q_INTERNAL_WIN_NO_THROW QPngHandlerPrivate::readPngHeader()
 {
     state = Error;
@@ -557,9 +551,7 @@ bool Q_INTERNAL_WIN_NO_THROW QPngHandlerPrivate::readPngHeader()
     return true;
 }
 
-/*!
-    \internal
-*/
+
 bool Q_INTERNAL_WIN_NO_THROW QPngHandlerPrivate::readPngImage(QImage *outImage)
 {
     if (state == Error)