Fix QQmlTypePrivate memory leak in qmltc-generated types with extensions

Apparently registering the QQmlTypePrivate for a meta-object is not
good enough. Somehow clang's ASan failed to discover a memory leak but
gcc's ASan did not. After carefully exercising the code and a bit of
debugging, turns out we indeed not release manually created
QQmlTypePrivate objects. Do release the QQmlTypePrivate correctly now

In the process of doing so, remove now-redundant QMetaObject function
parameter

Amends 26179e693717535eeff2e7b2a6ee99dc02dcd8f9

Change-Id: Ia0c808cd8a09cf996672bca9953108facfdf5d4e
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
(cherry picked from commit 48ae7468afc06d52844badb3f5f41114f67a360f)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 1 insertions, 4 deletions

diff --git a/tools/qmltc/qmltccompilerpieces.h b/tools/qmltc/qmltccompilerpieces.h
index bc423807fb..9afc001b55 100644
--- a/tools/qmltc/qmltccompilerpieces.h
+++ b/tools/qmltc/qmltccompilerpieces.h
@@ -236,10 +236,7 @@ inline decltype(auto) QmltcCodeGenerator::generate_initCode(QmltcType &current,
     if (hasExtension) {
         current.init.body << u"{"_s;
         current.init.body << u"auto cppData = QmltcTypeData(this);"_s;
-        current.init.body
-                << QStringLiteral(
-                           "qmltcCreateDynamicMetaObject(this, &%1::staticMetaObject, cppData);")
-                           .arg(type->internalName());
+        current.init.body << u"qmltcCreateDynamicMetaObject(this, cppData);"_s;
         current.init.body << u"}"_s;
     }