QSystemLocale(): disable copy and move

Axivion (SV546) points out (based on a clazy "rule of three" that
might be rule of five by now) the lack of move and copy assignment and
construction. We don't want those anyway, so tell the compiler not to
create them.

Pick-to: 6.5
Task-number: QTBUG-122619
Change-Id: Ie951a2c3d60d76ad3448310d3f9bbda22190015b
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 21ef6d930ad3eb2fb435cd601692cb5cc1726bd8)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

src/corelib/text/qlocale_p.h

@@ -105,6 +105,7 @@ struct QLocaleData;
 // Subclassed by Android platform plugin:
 class Q_CORE_EXPORT QSystemLocale
 {
+    Q_DISABLE_COPY_MOVE(QSystemLocale)
     QSystemLocale *next = nullptr; // Maintains a stack.
 
 public:

src/plugins/platforms/android/qandroidsystemlocale.h

@@ -11,6 +11,7 @@ QT_BEGIN_NAMESPACE
 
 class QAndroidSystemLocale : public QSystemLocale
 {
+    Q_DISABLE_COPY_MOVE(QAndroidSystemLocale)
 public:
     QAndroidSystemLocale();
 

tests/auto/corelib/text/qlocale/tst_qlocale.cpp

@@ -3966,6 +3966,7 @@ void tst_QLocale::bcp47Name()
 #  ifdef QT_BUILD_INTERNAL
 class MySystemLocale : public QSystemLocale
 {
+    Q_DISABLE_COPY_MOVE(MySystemLocale)
 public:
     MySystemLocale(const QString &locale)
     : m_name(locale), m_id(QLocaleId::fromName(locale)), m_locale(locale)