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>

2 files changed, 2 insertions, 2 deletions

diff --git a/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp b/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp
index 076cf49ba7..9cb232e13d 100644
--- a/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp
+++ b/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp
@@ -408,7 +408,7 @@ QRegion QLinuxFbDrmScreen::doRedraw()
     // Image has alpha but no need for blending at this stage.
     // Do not waste time with the default SourceOver.
     pntr.setCompositionMode(QPainter::CompositionMode_Source);
-    for (const QRect &rect : qAsConst(output->dirty[output->backFb]))
+    for (const QRect &rect : std::as_const(output->dirty[output->backFb]))
         pntr.drawImage(rect, mScreenImage, rect);
     pntr.end();
 
diff --git a/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp b/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp
index 24cab2ee23..e2826f3946 100644
--- a/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp
+++ b/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp
@@ -286,7 +286,7 @@ bool QLinuxFbScreen::initialize()
     bool doSwitchToGraphicsMode = true;
 
     // Parse arguments
-    for (const QString &arg : qAsConst(mArgs)) {
+    for (const QString &arg : std::as_const(mArgs)) {
         QRegularExpressionMatch match;
         if (arg == "nographicsmodeswitch"_L1)
             doSwitchToGraphicsMode = false;