doc: Add class qualifiers to parameter types

This change supplies several missing class qualifiers for
parameter types and function return types.

Change-Id: I569026e4da0948902fcc13557003d3748b85dd82
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

src/corelib/kernel/qobject.cpp

@@ -5024,7 +5024,7 @@ bool QObjectPrivate::disconnect(const QObject *sender, int signal_index, void **
  */
 
 /*!
-    Create a copy of the handle to the connection
+    Create a copy of the handle to the \a other connection
  */
 QMetaObject::Connection::Connection(const QMetaObject::Connection &other) : d_ptr(other.d_ptr)
 {

src/corelib/tools/qsharedpointer.cpp

@@ -503,11 +503,15 @@
 */
 
 /*!
-    \fn QSharedPointer::QSharedPointer(std::nullptr_t, Deleter)
+    \fn QSharedPointer::QSharedPointer(std::nullptr_t, Deleter deleter)
     \since 5.8
 
     Creates a QSharedPointer that is null. This is equivalent to the
     QSharedPointer default constructor.
+
+    The \a deleter parameter specifies the custom deleter for this
+    object. The custom deleter is called, instead of the operator
+    delete(), when the strong reference count drops to 0.
 */
 
 /*!

src/gui/image/qimage.cpp

@@ -2134,8 +2134,8 @@ QImage QImage::convertToFormat(Format format, const QVector<QRgb> &colorTable, Q
 /*!
     \since 5.9
 
-    Changes the \a format of the image without changing the data. Only
-    works between formats of the same depth.
+    Changes the format of the image to \a format without changing the
+    data. Only works between formats of the same depth.
 
     Returns \c true if successful.
 

src/gui/text/qtextdocument.cpp

@@ -74,6 +74,8 @@ QT_BEGIN_NAMESPACE
 Q_CORE_EXPORT Q_DECL_CONST_FUNCTION unsigned int qt_int_sqrt(unsigned int n);
 
 /*!
+    \fn bool Qt::mightBeRichText(const QString& text)
+
     Returns \c true if the string \a text is likely to be rich text;
     otherwise returns \c false.
 
@@ -144,6 +146,8 @@ bool Qt::mightBeRichText(const QString& text)
 
 
 /*!
+    \fn QString Qt::convertFromPlainText(const QString &plain, Qt::WhiteSpaceMode mode)
+
     Converts the plain text string \a plain to an HTML-formatted
     paragraph while preserving most of its look.
 

src/network/access/qhstspolicy.cpp

@@ -103,9 +103,15 @@ QHstsPolicy::QHstsPolicy() : d(new QHstsPolicyPrivate)
 }
 
 /*!
-    Constructs QHstsPolicy with \a expiry (in UTC):
-    - \a host data is interpreted according to \a mode;
-    - \a flags selects options to apply to this policy.
+  \enum QHstsPolicy::PolicyFlag
+
+  \value IncludeSubDomains Indicates whether a policy must include subdomains
+*/
+
+/*!
+    Constructs QHstsPolicy with \a expiry (in UTC); \a flags is a value indicating
+    whether this policy must also include subdomains, \a host data is interpreted
+    according to \a mode.
 
     \sa QUrl::setHost(), QUrl::ParsingMode, QHstsPolicy::PolicyFlag
 */
@@ -213,4 +219,10 @@ bool QHstsPolicy::isExpired() const
     return !d->expiry.isValid() || d->expiry <= QDateTime::currentDateTimeUtc();
 }
 
+/*!
+  \fn void QHstsPolicy::swap(QHstsPolicy &other)
+
+  Swaps this policy with the \a other policy.
+*/
+
 QT_END_NAMESPACE

src/network/access/qnetworkaccessmanager.cpp

@@ -781,7 +781,9 @@ bool QNetworkAccessManager::isStrictTransportSecurityStoreEnabled() const
 /*!
     \since 5.9
 
-    Adds HTTP Strict Transport Security policies contained in \a knownHosts into HSTS cache.
+    Adds HTTP Strict Transport Security policies into HSTS cache.
+    \a knownHosts contains the known hosts that have QHstsPolicy
+    information.
 
     \note An expired policy will remove a known host from the cache, if previously
     present.

src/plugins/styles/mac/qmacstyle.qdoc

@@ -87,7 +87,7 @@
 
 
 /*!
-    \enum QMacStyle::WidgetSizePolicy
+    \enum QStyleHelper::WidgetSizePolicy
 
     \value SizeSmall
     \value SizeLarge
@@ -123,7 +123,7 @@
     \reimp
 */
 
-/*! \fn int QMacStyle::pixelMetric(PixelMetric metric, const QStyleOption *opt, const QWidget *widget) const
+/*! \fn int QMacStyle::pixelMetric(QStyle::PixelMetric metric, const QStyleOption *opt, const QWidget *widget) const
     \reimp
 */
 
@@ -131,7 +131,7 @@
     \reimp
 */
 
-/*! \fn int QMacStyle::styleHint(StyleHint sh, const QStyleOption *opt, const QWidget *w, QStyleHintReturn *hret) const
+/*! \fn int QMacStyle::styleHint(QStyle::StyleHint sh, const QStyleOption *opt, const QWidget *w, QStyleHintReturn *hret) const
     \reimp
 */
 
@@ -139,11 +139,11 @@
     \reimp
 */
 
-/*! \fn QPixmap QMacStyle::standardPixmap(StandardPixmap standardPixmap, const QStyleOption *opt, const QWidget *widget) const
+/*! \fn QPixmap QMacStyle::standardPixmap(QStyle::StandardPixmap standardPixmap, const QStyleOption *opt, const QWidget *widget) const
     \reimp
 */
 
-/*! \fn void QMacStyle::setWidgetSizePolicy(const QWidget *widget, WidgetSizePolicy policy)
+/*! \fn void QStyleHelper::setWidgetSizePolicy(const QWidget *widget, QStyleHelper::WidgetSizePolicy policy)
 
     \obsolete
 
@@ -151,41 +151,41 @@
     or Qt::WA_MacNormalSize instead.
 */
 
-/*! \fn QMacStyle::WidgetSizePolicy QMacStyle::widgetSizePolicy(const QWidget *widget, const QStyleOption *opt = 0)
+/*! \fn QStyleHelper::WidgetSizePolicy QStyleHelper::widgetSizePolicy(const QWidget *widget, const QStyleOption *opt)
     \obsolete
 
     Call QWidget::testAttribute() with Qt::WA_MacMiniSize, Qt::WA_MacSmallSize,
     or Qt::WA_MacNormalSize instead.
 */
 
-/*! \fn void QMacStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w) const
+/*! \fn void QMacStyle::drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w) const
 
     \reimp
 */
 
-/*! \fn void QMacStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPainter *p, const QWidget *w) const
+/*! \fn void QMacStyle::drawControl(QStyle::ControlElement ce, const QStyleOption *opt, QPainter *p, const QWidget *w) const
 
     \reimp
 */
 
-/*! \fn QRect QMacStyle::subElementRect(SubElement sr, const QStyleOption *opt, const QWidget *widget) const
+/*! \fn QRect QMacStyle::subElementRect(QStyle::SubElement sr, const QStyleOption *opt, const QWidget *widget) const
 
     \reimp
 */
 
-/*! \fn void QMacStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget) const
+/*! \fn void QMacStyle::drawComplexControl(QStyle::ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget) const
     \reimp
 */
 
-/*! \fn QStyle::SubControl QMacStyle::hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, const QPoint &pt, const QWidget *widget) const
+/*! \fn QStyle::SubControl QMacStyle::hitTestComplexControl(QStyle::ComplexControl cc, const QStyleOptionComplex *opt, const QPoint &pt, const QWidget *widget) const
     \reimp
 */
 
-/*! \fn QRect QMacStyle::subControlRect(ComplexControl cc, const QStyleOptionComplex *opt, SubControl sc, const QWidget *widget) const
+/*! \fn QRect QMacStyle::subControlRect(QStyle::ComplexControl cc, const QStyleOptionComplex *opt, QStyle::SubControl sc, const QWidget *widget) const
     \reimp
 */
 
-/*! \fn QSize QMacStyle::sizeFromContents(ContentsType ct, const QStyleOption *opt, const QSize &csz, const QWidget *widget) const
+/*! \fn QSize QMacStyle::sizeFromContents(QStyle::ContentsType ct, const QStyleOption *opt, const QSize &csz, const QWidget *widget) const
     \reimp
 */
 
@@ -197,7 +197,7 @@
     \reimp
 */
 
-/*! \fn QIcon QMacStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *opt, const QWidget *widget) const
+/*! \fn QIcon QMacStyle::standardIcon(QStyle::StandardPixmap standardIcon, const QStyleOption *opt, const QWidget *widget) const
     \reimp
 */
 

src/widgets/kernel/qlayoutitem.cpp

@@ -400,8 +400,8 @@ int QLayoutItem::minimumHeightForWidth(int w) const
 
 
 /*!
-    Returns the preferred height for this layout item, given the width
-    \a w.
+    Returns the preferred height for this layout item, given the
+    width, which is not used in this default implementation.
 
     The default implementation returns -1, indicating that the
     preferred height is independent of the width of the item. Using