Use the new support for comparisons in QMetaType for QVariant

Remove the compare method in the QVariant::Handler struct. Rely
on the generic support provided by QMetaType instead.

[ChangeLog][Important Behavior Changes][QVariant] QVariant will now use builtin support in
QMetaType to compare its content. This implies a behavioral change
for some graphical types like QPixmap, QImage and QIcon that will
never compare equal in Qt 6 (as they do not have a comparison
operator).

Change-Id: I30a6e7116c89124d11ed9052537cecc23f78116e
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 0 insertions, 17 deletions

diff --git a/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp b/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
index a41af75f72..040fb474e7 100644
--- a/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
+++ b/tests/auto/corelib/kernel/qvariant/tst_qvariant.cpp
@@ -187,7 +187,6 @@ private slots:
 
     void operator_eq_eq_data();
     void operator_eq_eq();
-    void operator_eq_eq_rhs();
 
     void typeName_data();
     void typeName();
@@ -1676,22 +1675,6 @@ void tst_QVariant::operator_eq_eq()
     QCOMPARE( left == right, equal );
 }
 
-void tst_QVariant::operator_eq_eq_rhs()
-{
-    QVariant v = 42;
-
-    QVERIFY(v == 42);
-    QVERIFY(42 == v);
-
-#if 0
-    /* This should _not_ compile */
-    QStringList list;
-    QDateTime dt;
-
-    QVERIFY(dt == list);
-#endif
-}
-
 void tst_QVariant::typeName_data()
 {
     QTest::addColumn<int>("type");