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.

Task-number: QTBUG-99313
Change-Id: I88edd91395849574436299b8badda21bb93bea39
Reviewed-by: hjk <hjk@qt.io>

src/app/main.cpp

@@ -584,7 +584,7 @@ int main(int argc, char **argv)
     if (!overrideLanguage.isEmpty())
         uiLanguages.prepend(overrideLanguage);
     const QString &creatorTrPath = resourcePath() + "/translations";
-    for (QString locale : qAsConst(uiLanguages)) {
+    for (QString locale : std::as_const(uiLanguages)) {
         locale = QLocale(locale).name();
         if (translator.load("qtcreator_" + locale, creatorTrPath)) {
             const QString &qtTrPath = QLibraryInfo::location(QLibraryInfo::TranslationsPath);