tst_QStringApiSymmetry: test QByteArray(weak)/QByteArrayView overloading

Adding it here since this test case already has all the infrastructure
for the overload test.

Pick-to: 6.5
Change-Id: I2d7fff9d2d82fed3db2446690a354f939c9a37fc
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
(cherry picked from commit 140dac9)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 29e2695)

tests/auto/corelib/text/qstringapisymmetry/tst_qstringapisymmetry.cpp

@@ -1198,6 +1198,10 @@ Q_WEAK_OVERLOAD
 auto overload_s_bav(const QString &s) { return s; }
 auto overload_s_bav(QByteArrayView s) { return s; }
 
+Q_WEAK_OVERLOAD
+auto overload_ba_bav(const QByteArray &s) { return s; }
+auto overload_ba_bav(QByteArrayView s) { return s; }
+
 } // unnamed namespace
 
 template<typename T>
@@ -1269,6 +1273,15 @@ void tst_QStringApiSymmetry::overload()
             overload_s_bav(CT());
         }
     }
+
+    if constexpr (std::is_convertible_v<T, QByteArray> || std::is_convertible_v<T, QByteArrayView>) {
+        overload_ba_bav(t);
+        overload_ba_bav(ct);
+        if constexpr (!std::is_array_v<T>) {
+            overload_ba_bav(T());
+            overload_ba_bav(CT());
+        }
+    }
     QT_WARNING_POP
 }