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, with manual
unstaging of the actual definition and documentation in dist/,
src/corelib/doc/ and src/corelib/global/.

Task-number: QTBUG-99313
Change-Id: I4c7114444a325ad4e62d0fcbfd347d2bbfb21541
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>

3 files changed, 5 insertions, 5 deletions

diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index aef35735ba..77154fee07 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -1185,7 +1185,7 @@ void QApplicationPrivate::handlePaletteChanged(const char *className)
     }
 
 #if QT_CONFIG(graphicsview)
-    for (auto scene : qAsConst(scene_list))
+    for (auto scene : std::as_const(scene_list))
         QCoreApplication::sendEvent(scene, &event);
 #endif
 
@@ -2083,7 +2083,7 @@ void QApplicationPrivate::dispatchEnterLeave(QWidget* enter, QWidget* leave, con
         const QPointF globalPos = qIsInf(globalPosF.x())
             ? QPointF(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX)
             : globalPosF;
-        const QPointF windowPos = qAsConst(enterList).back()->window()->mapFromGlobal(globalPos);
+        const QPointF windowPos = std::as_const(enterList).back()->window()->mapFromGlobal(globalPos);
         for (auto it = enterList.crbegin(), end = enterList.crend(); it != end; ++it) {
             auto *w = *it;
             if (!QApplication::activeModalWidget() || QApplicationPrivate::tryModalHelper(w, nullptr)) {
@@ -3177,7 +3177,7 @@ bool QApplication::notify(QObject *receiver, QEvent *e)
                     break;
                 w = w->parentWidget();
             }
-            for (QGesture *g : qAsConst(allGestures))
+            for (QGesture *g : std::as_const(allGestures))
                 gestureEvent->setAccepted(g, false);
             gestureEvent->m_accept = false; // to make sure we check individual gestures
             break;
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index aa7b70446b..bcbf10b95d 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -1432,7 +1432,7 @@ QWidget::~QWidget()
 
 #ifndef QT_NO_ACTION
     // remove all actions from this widget
-    for (auto action : qAsConst(d->actions)) {
+    for (auto action : std::as_const(d->actions)) {
         QActionPrivate *apriv = action->d_func();
         apriv->associatedObjects.removeAll(this);
     }
diff --git a/src/widgets/kernel/qwidgetrepaintmanager.cpp b/src/widgets/kernel/qwidgetrepaintmanager.cpp
index effa91ca22..4d5e4e6522 100644
--- a/src/widgets/kernel/qwidgetrepaintmanager.cpp
+++ b/src/widgets/kernel/qwidgetrepaintmanager.cpp
@@ -565,7 +565,7 @@ static void findAllTextureWidgetsRecursively(QWidget *tlw, QWidget *widget)
         if (!tl->isEmpty())
             QWidgetPrivate::get(tlw)->topData()->widgetTextures.push_back(std::move(tl));
         // Native child widgets, if there was any, get their own separate QPlatformTextureList.
-        for (QWidget *ncw : qAsConst(nativeChildren)) {
+        for (QWidget *ncw : std::as_const(nativeChildren)) {
             if (QWidgetPrivate::get(ncw)->textureChildSeen)
                 findAllTextureWidgetsRecursively(tlw, ncw);
         }