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>

1 files changed, 4 insertions, 4 deletions

diff --git a/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp b/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
index 024e26d8be..90f365668d 100644
--- a/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
+++ b/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
@@ -893,7 +893,7 @@ void tst_QApplication::closeAllWindows()
 
     // show all windows
     auto topLevels = QApplication::topLevelWidgets();
-    for (QWidget *w : qAsConst(topLevels)) {
+    for (QWidget *w : std::as_const(topLevels)) {
         w->show();
         QVERIFY(QTest::qWaitForWindowExposed(w));
     }
@@ -910,14 +910,14 @@ void tst_QApplication::closeAllWindows()
     PromptOnCloseWidget *promptOnCloseWidget = new PromptOnCloseWidget;
     // show all windows
     topLevels = QApplication::topLevelWidgets();
-    for (QWidget *w : qAsConst(topLevels)) {
+    for (QWidget *w : std::as_const(topLevels)) {
         w->show();
         QVERIFY(QTest::qWaitForWindowExposed(w));
     }
     // close the last window to open the prompt (eventloop recurses)
     promptOnCloseWidget->close();
     // all windows should not be visible, except the one that opened the prompt
-    for (QWidget *w : qAsConst(topLevels)) {
+    for (QWidget *w : std::as_const(topLevels)) {
         if (w == promptOnCloseWidget)
             QVERIFY(w->isVisible());
         else
@@ -2480,7 +2480,7 @@ void tst_QApplication::wheelEventPropagation()
     int vcount = 0;
     int hcount = 0;
 
-    for (const auto &event : qAsConst(events)) {
+    for (const auto &event : std::as_const(events)) {
         const QPoint pixelDelta = event.orientation == Qt::Vertical ? QPoint(0, -scrollStep) : QPoint(-scrollStep, 0);
         const QPoint angleDelta = event.orientation == Qt::Vertical ? QPoint(0, -120) : QPoint(-120, 0);
         QWindowSystemInterface::handleWheelEvent(outerArea.windowHandle(), center, global,