Qt Designer: Clean up the SDK headers

- Use "= default" for constructors/destructors
- Disable copy/move for non-QObject type interfaces and
  add constructors were needed
- Remove duplicated disable copy for QObject type interfaces
- Fix some formatting
- Remove default implementation of
  QDesignerContainerExtension::canAddWidget()/canRemoveWidget()
- Remove Qt 6 fixme comments

Task-number: QTBUG-79896
Change-Id: If9521910c6488c081817e2ccdbf42de578cb16ad
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/designer/src/lib/sdk/abstractlanguage.h b/src/designer/src/lib/sdk/abstractlanguage.h
index e31dfa78d..1ac58261f 100644
--- a/src/designer/src/lib/sdk/abstractlanguage.h
+++ b/src/designer/src/lib/sdk/abstractlanguage.h
@@ -53,7 +53,10 @@ class QDesignerResourceBrowserInterface;
 class QDesignerLanguageExtension
 {
 public:
-    virtual ~QDesignerLanguageExtension() {}
+    Q_DISABLE_COPY_MOVE(QDesignerLanguageExtension)
+
+    QDesignerLanguageExtension() = default;
+    virtual ~QDesignerLanguageExtension() = default;
 
     /*!
         Returns the name to be matched against the "language" attribute of the <ui> element.