Remove usages of deprecated APIs of corelib

- Replaced the usages of deprecated APIs of corelib by corresponding
  alternatives in the library code and documentation.

- Modified the tests to make them build when deprecated APIs disabled:
    * Made the the parts of the tests testing the deprecated APIs to
      be compiled conditionally, only when the corresponding methods are
      enabled.
    * If the test-case tests only the deprecated API, but not the
      corresponding replacement, added tests for the replacement.

Task-number: QTBUG-76491
Task-number: QTBUG-76539
Task-number: QTBUG-76541
Change-Id: I62ed4a5b530a965ec3f6502c6480808f938921aa
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/auto/corelib/kernel/qmetaobject/tst_qmetaobject.cpp b/tests/auto/corelib/kernel/qmetaobject/tst_qmetaobject.cpp
index 89a06b358e..026c6a6324 100644
--- a/tests/auto/corelib/kernel/qmetaobject/tst_qmetaobject.cpp
+++ b/tests/auto/corelib/kernel/qmetaobject/tst_qmetaobject.cpp
@@ -520,7 +520,7 @@ public slots:
                                      QVector<QtTestObject *> o5, QList<QtTestObject *> o6)
     {
         slotResult = QLatin1String("slotWithRegistrableArgument:") + o1->slotResult + o2->slotResult
-            + o3->slotResult + o4.data()->slotResult + QString::number(o5.size())
+            + o3->slotResult + o4.toStrongRef()->slotResult + QString::number(o5.size())
             + QString::number(o6.size());
     }