Some Qt6 porting

- QVector cannot be forward-declared anymore as it is a typedef in Qt 6.
- 64 bit sizes cause warnings in printf("%d")

Task-number: QTCREATORBUG-24098
Change-Id: I75fc2a1113fb7a6e8c298e985eb7eb8d1a4c21b0
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/valgrind/xmlprotocol/announcethread.h

@@ -27,10 +27,7 @@
 #pragma once
 
 #include <QSharedDataPointer>
-
-QT_BEGIN_NAMESPACE
-template <typename T> class QVector;
-QT_END_NAMESPACE
+#include <QVector>
 
 namespace Valgrind {
 namespace XmlProtocol {

src/plugins/valgrind/xmlprotocol/error.h

@@ -28,10 +28,10 @@
 
 #include <QMetaType>
 #include <QSharedDataPointer>
+#include <QVector>
 
 QT_BEGIN_NAMESPACE
 class QString;
-template <typename T> class QVector;
 QT_END_NAMESPACE
 
 namespace Valgrind {

src/plugins/valgrind/xmlprotocol/stack.h

@@ -27,10 +27,7 @@
 #pragma once
 
 #include <QSharedDataPointer>
-
-QT_BEGIN_NAMESPACE
-template <typename T> class QVector;
-QT_END_NAMESPACE
+#include <QVector>
 
 namespace Valgrind {
 namespace XmlProtocol {

src/plugins/valgrind/xmlprotocol/suppression.h

@@ -27,10 +27,10 @@
 #pragma once
 
 #include <QSharedDataPointer>
+#include <QVector>
 
 QT_BEGIN_NAMESPACE
 class QString;
-template <typename T> class QVector;
 QT_END_NAMESPACE
 
 namespace Valgrind {