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, 1 insertions, 1 deletions

diff --git a/src/corelib/thread/qresultstore.h b/src/corelib/thread/qresultstore.h
index f633ed7801..6d4259e279 100644
--- a/src/corelib/thread/qresultstore.h
+++ b/src/corelib/thread/qresultstore.h
@@ -71,7 +71,7 @@ public:
     template <typename T>
     T *pointer()
     {
-        const T *p = qAsConst(*this).pointer<T>();
+        const T *p = std::as_const(*this).pointer<T>();
         return const_cast<T *>(p);
     }