qmltyperegistrar: test for missing Component in qmltypes

qmllint was wrongly complaining about missing types because
qmltyperegistrar was not including all required types in the qmltypes
files.
Add a regression test to make sure that we don't run into the problem
mentioned by Mario Emmenlauer in the linked task at QTBUG-118112.

Task-number: QTBUG-118112
Pick-to: 6.8
Change-Id: Id67e9f9927e94ad5aa900c7bf30e85fc977e3e45
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

tests/auto/qml/qmltyperegistrar/CMakeLists.txt

@@ -33,6 +33,7 @@ target_link_libraries(tst_qmltyperegistrarPrivate PRIVATE Qt::Core)
 qt_internal_add_test(tst_qmltyperegistrar
     SOURCES
         hppheader.hpp
+        typereferencinganother.h
         # noextheader special case
         tst_qmltyperegistrar.cpp tst_qmltyperegistrar.h
         foo.cpp foo.h duplicatedExports.h

tests/auto/qml/qmltyperegistrar/tst_qmltyperegistrar.cpp

@@ -1133,5 +1133,15 @@ void tst_qmltyperegistrar::preserveVoidStarPropTypes()
         }
     })"));
 }
+void tst_qmltyperegistrar::allReferencedTypesCollected()
+{
+    // reproduce the issue from the comment in QTBUG-118112
+    QVERIFY(qmltypesData.contains(R"(Component {
+        file: "typereferencinganother.h"
+        name: "SampleHeader"
+        accessSemantics: "reference"
+        prototype: "QObject"
+    })"));
+}
 
 QTEST_MAIN(tst_qmltyperegistrar)

tests/auto/qml/qmltyperegistrar/tst_qmltyperegistrar.h

@@ -940,6 +940,7 @@ private slots:
     void doNotDuplicateQtNamespace();
     void doNotDuplicateQObject();
     void slotsBeforeInvokables();
+    void allReferencedTypesCollected();
 
     void omitQQmlV4FunctionPtrArg();
     void preserveVoidStarPropTypes();

tests/auto/qml/qmltyperegistrar/typereferencinganother.h

@@ -0,0 +1,37 @@
+// Copyright (C) 2024 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#ifndef QTBUG_118112_H
+#define QTBUG_118112_H
+
+
+#include <QtCore/QObject>
+#include <QtQml/qqml.h>
+
+class SampleHeader: public QObject {
+    Q_OBJECT
+};
+
+class SampleUser: public QObject {
+    Q_OBJECT
+    QML_ELEMENT
+
+    Q_PROPERTY(SampleHeader* header READ header WRITE setHeader NOTIFY headerChanged)
+    Q_PROPERTY(int invalid READ invalid WRITE setInvalid NOTIFY invalidChanged)
+
+public:
+    SampleHeader* header() const {return m_header;}
+    void setHeader(SampleHeader* header) {m_header = header;}
+    int invalid() const { return m_invalid;}
+    void setInvalid(int invalid) { m_invalid = invalid; }
+
+signals:
+    void headerChanged();
+    void invalidChanged();
+
+private:
+    SampleHeader* m_header;
+    int m_invalid;
+};
+
+#endif // QTBUG_118112_H