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/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp
index c95f2ef272..fd3cd94a13 100644
--- a/src/plugins/platforms/windows/qwindowscontext.cpp
+++ b/src/plugins/platforms/windows/qwindowscontext.cpp
@@ -264,7 +264,7 @@ void QWindowsContext::registerTouchWindows()
 {
     if (QGuiApplicationPrivate::is_app_running
         && (d->m_systemInfo & QWindowsContext::SI_SupportsTouch) != 0) {
-        for (QWindowsWindow *w : qAsConst(d->m_windows))
+        for (QWindowsWindow *w : std::as_const(d->m_windows))
             w->registerTouchWindow();
     }
 }
@@ -601,7 +601,7 @@ void QWindowsContext::unregisterWindowClasses()
 {
     const auto appInstance = static_cast<HINSTANCE>(GetModuleHandle(nullptr));
 
-    for (const QString &name : qAsConst(d->m_registeredWindowClassNames)) {
+    for (const QString &name : std::as_const(d->m_registeredWindowClassNames)) {
         if (!UnregisterClass(reinterpret_cast<LPCWSTR>(name.utf16()), appInstance) && QWindowsContext::verbose)
             qErrnoWarning("UnregisterClass failed for '%s'", qPrintable(name));
     }