qdoc:Fixed a few qdoc errors

Fixed a few qdoc error messages caused by errors in qmetatype.cpp and
qtextlayout.cpp and qtestcase.cpp and qpointer.cpp

Change-Id: I662aa25bedba057e125e289c34787e81793941ff
Task-number: QTBUG-46939
Reviewed-by: Martin Smith <martin.smith@digia.com>

src/corelib/kernel/qmetatype.cpp

@@ -1178,12 +1178,6 @@ bool QMetaType::isRegistered(int type)
     return ((type >= User) && (ct && ct->count() > type - User) && !ct->at(type - User).typeName.isEmpty());
 }
 
-/*!
-    \fn int qMetaTypeTypeImpl(const char *typeName, int length)
-    \internal
-
-    Implementation of QMetaType::type().
-*/
 template <bool tryNormalizedType>
 static inline int qMetaTypeTypeImpl(const char *typeName, int length)
 {

src/corelib/kernel/qpointer.cpp

@@ -128,7 +128,7 @@
 */
 
 /*!
-    \fn void QPointer::swap(QPointer<T> &other)
+    \fn void QPointer::swap(QPointer &other)
     \since 5.6
 
     Swaps the contents of this QPointer with the contents of \a other.

src/gui/text/qtextlayout.cpp

@@ -87,6 +87,20 @@ QT_BEGIN_NAMESPACE
     Specifies the format to apply.
 */
 
+/*! \fn bool operator==(const FormatRange &lhs, const FormatRange &rhs)
+  \relates QTextLayout::FormatRange
+
+  Returns true if the \c {start}, \c {length}, and \c {format} fields
+  in \a lhs and \a rhs contain the same values respectively.
+ */
+
+/*! \fn bool operator!=(const FormatRange &lhs, const FormatRange &rhs)
+  \relates QTextLayout::FormatRange
+
+  Returns true if any of the \c {start}, \c {length}, or \c {format} fields
+  in \a lhs and \a rhs contain different values respectively.
+ */
+
 /*!
     \class QTextInlineObject
     \reentrant

src/testlib/qtestcase.cpp

@@ -1318,7 +1318,7 @@ static void stackTrace()
 */
 
 /*!
-    \fn QTouchEventSequence QTest::touchEvent(QWindow *window, QTouchDevice *device, bool autoCommit = true)
+    \fn QTouchEventSequence QTest::touchEvent(QWindow *window, QTouchDevice *device, bool autoCommit)
     \since 5.0
 
     Creates and returns a QTouchEventSequence for the \a device to
@@ -1335,7 +1335,7 @@ static void stackTrace()
 */
 
 /*!
-    \fn QTouchEventSequence QTest::touchEvent(QWidget *widget, QTouchDevice *device, bool autoCommit = true)
+    \fn QTouchEventSequence QTest::touchEvent(QWidget *widget, QTouchDevice *device, bool autoCommit)
 
     Creates and returns a QTouchEventSequence for the \a device to
     simulate events for \a widget.