Put in some blank lines for better readibility of generated Qt binding code

scripts/mkqtdecl_common/produce.rb

@@ -2492,6 +2492,7 @@ END
     # Produce the mixin base classes
 
     if ! mixin_base_classes.empty?
+      ofile.puts("")
       ofile.puts("//  Additional base classes")
       ofile.puts("")
       mixin_base_classes.each do |bc|

src/gsiqt/qt6/QtCore/gsiDeclQIODevice.cc

@@ -846,6 +846,7 @@ qt_gsi::QtNativeClass<QIODevice> decl_QIODevice (qtdecl_QObject (), "QtCore", "Q
   methods_QIODevice (),
   "@qt\n@brief Binding of QIODevice");
 
+
 //  Additional base classes
 
 gsi::Class<QIODeviceBase> &qtdecl_QIODeviceBase ();

src/gsiqt/qt6/QtCore5Compat/gsiDeclQXmlDefaultHandler.cc

@@ -776,6 +776,7 @@ gsi::Class<QXmlContentHandler> &qtdecl_QXmlContentHandler ();
 gsi::Class<QXmlDefaultHandler> decl_QXmlDefaultHandler (qtdecl_QXmlContentHandler (), "QtCore5Compat", "QXmlDefaultHandler_Native",
   methods_QXmlDefaultHandler (),
   "@hide\n@alias QXmlDefaultHandler");
+
 //  Additional base classes
 
 gsi::Class<QXmlErrorHandler> &qtdecl_QXmlErrorHandler ();

src/gsiqt/qt6/QtGui/gsiDeclQOffscreenSurface.cc

@@ -313,6 +313,7 @@ gsi::Class<QObject> &qtdecl_QObject ();
 qt_gsi::QtNativeClass<QOffscreenSurface> decl_QOffscreenSurface (qtdecl_QObject (), "QtGui", "QOffscreenSurface_Native",
   methods_QOffscreenSurface (),
   "@hide\n@alias QOffscreenSurface");
+
 //  Additional base classes
 
 gsi::Class<QSurface> &qtdecl_QSurface ();

src/gsiqt/qt6/QtGui/gsiDeclQPaintDeviceWindow.cc

@@ -297,6 +297,7 @@ gsi::Class<QWindow> &qtdecl_QWindow ();
 qt_gsi::QtNativeClass<QPaintDeviceWindow> decl_QPaintDeviceWindow (qtdecl_QWindow (), "QtGui", "QPaintDeviceWindow_Native",
   methods_QPaintDeviceWindow (),
   "@hide\n@alias QPaintDeviceWindow");
+
 //  Additional base classes
 
 gsi::Class<QPaintDevice> &qtdecl_QPaintDevice ();

src/gsiqt/qt6/QtGui/gsiDeclQPdfWriter.cc

@@ -382,6 +382,7 @@ gsi::Class<QObject> &qtdecl_QObject ();
 qt_gsi::QtNativeClass<QPdfWriter> decl_QPdfWriter (qtdecl_QObject (), "QtGui", "QPdfWriter_Native",
   methods_QPdfWriter (),
   "@hide\n@alias QPdfWriter");
+
 //  Additional base classes
 
 gsi::Class<QPagedPaintDevice> &qtdecl_QPagedPaintDevice ();

src/gsiqt/qt6/QtGui/gsiDeclQWindow.cc

@@ -2206,6 +2206,7 @@ gsi::Class<QObject> &qtdecl_QObject ();
 qt_gsi::QtNativeClass<QWindow> decl_QWindow (qtdecl_QObject (), "QtGui", "QWindow_Native",
   methods_QWindow (),
   "@hide\n@alias QWindow");
+
 //  Additional base classes
 
 gsi::Class<QSurface> &qtdecl_QSurface ();

src/gsiqt/qt6/QtWidgets/gsiDeclQAccessibleWidget.cc

@@ -450,6 +450,7 @@ gsi::Class<QAccessibleWidget> decl_QAccessibleWidget (qtdecl_QAccessibleObject (
   methods_QAccessibleWidget (),
   "@qt\n@brief Binding of QAccessibleWidget");
 
+
 //  Additional base classes
 
 gsi::Class<QAccessibleActionInterface> &qtdecl_QAccessibleActionInterface ();

src/gsiqt/qt6/QtWidgets/gsiDeclQGraphicsObject.cc

@@ -243,6 +243,7 @@ gsi::Class<QObject> &qtdecl_QObject ();
 qt_gsi::QtNativeClass<QGraphicsObject> decl_QGraphicsObject (qtdecl_QObject (), "QtWidgets", "QGraphicsObject_Native",
   methods_QGraphicsObject (),
   "@hide\n@alias QGraphicsObject");
+
 //  Additional base classes
 
 gsi::Class<QGraphicsItem> &qtdecl_QGraphicsItem ();

src/gsiqt/qt6/QtWidgets/gsiDeclQGraphicsWidget.cc

@@ -1374,6 +1374,7 @@ gsi::Class<QGraphicsObject> &qtdecl_QGraphicsObject ();
 qt_gsi::QtNativeClass<QGraphicsWidget> decl_QGraphicsWidget (qtdecl_QGraphicsObject (), "QtWidgets", "QGraphicsWidget_Native",
   methods_QGraphicsWidget (),
   "@hide\n@alias QGraphicsWidget");
+
 //  Additional base classes
 
 gsi::Class<QGraphicsLayoutItem> &qtdecl_QGraphicsLayoutItem ();

src/gsiqt/qt6/QtWidgets/gsiDeclQLayout.cc

@@ -1013,6 +1013,7 @@ gsi::Class<QObject> &qtdecl_QObject ();
 qt_gsi::QtNativeClass<QLayout> decl_QLayout (qtdecl_QObject (), "QtWidgets", "QLayout_Native",
   methods_QLayout (),
   "@hide\n@alias QLayout");
+
 //  Additional base classes
 
 gsi::Class<QLayoutItem> &qtdecl_QLayoutItem ();

src/gsiqt/qt6/QtWidgets/gsiDeclQWidget.cc

@@ -4981,6 +4981,7 @@ gsi::Class<QObject> &qtdecl_QObject ();
 qt_gsi::QtNativeClass<QWidget> decl_QWidget (qtdecl_QObject (), "QtWidgets", "QWidget_Native",
   methods_QWidget (),
   "@hide\n@alias QWidget");
+
 //  Additional base classes
 
 gsi::Class<QPaintDevice> &qtdecl_QPaintDevice ();