Port from qAsConst() to std::as_const()

We've been requiring C++17 since Qt 6.0, and our qAsConst use finally
starts to bother us (QTBUG-99313), so time to port away from it
now.

Since qAsConst has exactly the same semantics as std::as_const (down
to rvalue treatment, constexpr'ness and noexcept'ness), there's really
nothing more to it than a global search-and-replace.

Task-number: QTBUG-99313
Change-Id: I88edd91395849574436299b8badda21bb93bea39
Reviewed-by: hjk <hjk@qt.io>

src/plugins/qmlprofiler/flamegraphmodel.cpp

@@ -118,7 +118,7 @@ void FlameGraphModel::loadEvent(const QmlEvent &event, const QmlEventType &type)
 
 void FlameGraphModel::finalize()
 {
-    for (FlameGraphData *child : qAsConst(m_stackBottom.children))
+    for (FlameGraphData *child : std::as_const(m_stackBottom.children))
         m_stackBottom.duration += child->duration;
 
     loadNotes(-1, false);

src/plugins/qmlprofiler/pixmapcachemodel.cpp

@@ -411,7 +411,7 @@ QString PixmapCacheModel::fileName(int index) const
 
 void PixmapCacheModel::computeMaxCacheSize()
 {
-    for (const PixmapCacheModel::Item &event : qAsConst(m_data)) {
+    for (const PixmapCacheModel::Item &event : std::as_const(m_data)) {
         if (event.pixmapEventType == PixmapCacheModel::PixmapCacheCountChanged) {
             if (event.cacheSize > m_maxCacheSize)
                 m_maxCacheSize = event.cacheSize;

src/plugins/qmlprofiler/qmlprofilermodelmanager.cpp

@@ -390,7 +390,7 @@ QmlProfilerModelManager::rangeFilter(qint64 rangeStart, qint64 rangeEnd) const
                 }
             } else {
                 if (!crossedRangeStart) {
-                    for (auto stashed : qAsConst(stack)) {
+                    for (auto stashed : std::as_const(stack)) {
                         stashed.setTimestamp(rangeStart);
                         loader(stashed, eventType(stashed.typeIndex()));
                     }

src/plugins/qmlprofiler/qmlprofilertextmark.cpp

@@ -94,13 +94,13 @@ void QmlProfilerTextMarkModel::createMarks(QmlProfilerViewManager *viewManager,
 
 void QmlProfilerTextMarkModel::showTextMarks()
 {
-    for (QmlProfilerTextMark *mark : qAsConst(m_marks))
+    for (QmlProfilerTextMark *mark : std::as_const(m_marks))
         mark->setVisible(true);
 }
 
 void QmlProfilerTextMarkModel::hideTextMarks()
 {
-    for (QmlProfilerTextMark *mark : qAsConst(m_marks))
+    for (QmlProfilerTextMark *mark : std::as_const(m_marks))
         mark->setVisible(false);
 }