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, 2 insertions, 2 deletions

diff --git a/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp b/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp
index 55918a1173..f3c1688639 100644
--- a/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp
+++ b/tests/auto/widgets/styles/qstylesheetstyle/tst_qstylesheetstyle.cpp
@@ -1717,7 +1717,7 @@ void tst_QStyleSheetStyle::toolTip()
 
         topLevels = QApplication::topLevelWidgets();
         QWidget *tooltip = nullptr;
-        for (QWidget *widget : qAsConst(topLevels)) {
+        for (QWidget *widget : std::as_const(topLevels)) {
             if (widget->inherits("QTipLabel")) {
                 tooltip = widget;
                 break;
@@ -1733,7 +1733,7 @@ void tst_QStyleSheetStyle::toolTip()
     delete wid3; //should not crash;
     QTest::qWait(10);
     topLevels = QApplication::topLevelWidgets();
-    for (QWidget *widget : qAsConst(topLevels))
+    for (QWidget *widget : std::as_const(topLevels))
         widget->update(); //should not crash either
 }