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/libs/qmljs/qmljsinterpreter.cpp

@@ -2565,7 +2565,7 @@ const ObjectValue *Imports::resolveAliasAndMarkUsed(const QString &name) const
 {
     if (const ObjectValue *value = m_aliased.value(name, nullptr)) {
         // mark all respective ImportInfo objects to avoid dropping imports (QmlDesigner) on rewrite
-        for (const Import &i : qAsConst(m_imports)) {
+        for (const Import &i : std::as_const(m_imports)) {
             const ImportInfo &info = i.info;
             if (info.as() == name)
                 i.used = true; // FIXME: This evilly modifies a 'const' object