type-hints: Correct QMessagebox annotations

parent parameter of about, aboutQt, critical, information, question, and warning changed to Optional[QWidget].

Fixes: PYSIDE-3021
Pick-to: 6.8 6.9
Change-Id: I31e556933f25f6c21e18debb274db6a13ffbe2ed
Reviewed-by: Christian Tismer <[email protected]>

Author: Ece Cinucen

sources/pyside6/PySide6/QtWidgets/typesystem_widgets_common.xml

@@ -2317,18 +2317,34 @@
                      snippet="qmessagebox-open-connect-accept"/>
     </add-function>
     <!-- FIXME PYSIDE-7: Remove deprecated overloads -->
-    <modify-function signature="critical(QWidget*,const QString&amp;,const QString&amp;,QFlags&lt;QMessageBox::StandardButton&gt;,QMessageBox::StandardButton)" allow-thread="yes"/>
+    <modify-function signature="critical(QWidget*,const QString&amp;,const QString&amp;,QFlags&lt;QMessageBox::StandardButton&gt;,QMessageBox::StandardButton)" allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
     <modify-function signature="critical(QWidget*,const QString&amp;,const QString&amp;,QMessageBox::StandardButton,QMessageBox::StandardButton)"
-                     allow-thread="yes"/>
-    <modify-function signature="information(QWidget*,const QString&amp;,const QString&amp;,QFlags&lt;QMessageBox::StandardButton&gt;,QMessageBox::StandardButton)" allow-thread="yes"/>
+                     allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
+    <modify-function signature="information(QWidget*,const QString&amp;,const QString&amp;,QFlags&lt;QMessageBox::StandardButton&gt;,QMessageBox::StandardButton)" allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
     <modify-function signature="information(QWidget*,const QString&amp;,const QString&amp;,QMessageBox::StandardButton,QMessageBox::StandardButton)"
-                     allow-thread="yes"/>
-    <modify-function signature="question(QWidget*,const QString&amp;,const QString&amp;,QFlags&lt;QMessageBox::StandardButton&gt;,QMessageBox::StandardButton)" allow-thread="yes"/>
+                     allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
+    <modify-function signature="question(QWidget*,const QString&amp;,const QString&amp;,QFlags&lt;QMessageBox::StandardButton&gt;,QMessageBox::StandardButton)" allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
     <modify-function signature="question(QWidget*,const QString&amp;,const QString&amp;,QMessageBox::StandardButton,QMessageBox::StandardButton)"
-                     allow-thread="yes"/>
-    <modify-function signature="warning(QWidget*,const QString&amp;,const QString&amp;,QFlags&lt;QMessageBox::StandardButton&gt;,QMessageBox::StandardButton)" allow-thread="yes"/>
+                     allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
+    <modify-function signature="warning(QWidget*,const QString&amp;,const QString&amp;,QFlags&lt;QMessageBox::StandardButton&gt;,QMessageBox::StandardButton)" allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
     <modify-function signature="warning(QWidget*,const QString&amp;,const QString&amp;,QMessageBox::StandardButton,QMessageBox::StandardButton)"
-                     allow-thread="yes"/>
+                     allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
     <modify-function signature="QMessageBox(const QString&amp;,const QString&amp;,QMessageBox::Icon,int,int,int,QWidget*,QFlags&lt;Qt::WindowType&gt;)" remove="all"/>
     <modify-function signature="critical(QWidget*,const QString&amp;,const QString&amp;,int,int,int)" remove="all"/>
     <modify-function signature="critical(QWidget*,const QString&amp;,const QString&amp;,const QString&amp;,const QString&amp;,const QString&amp;,int,int)" remove="all"/>
@@ -2338,8 +2354,12 @@
     <modify-function signature="question(QWidget*,const QString&amp;,const QString&amp;,const QString&amp;,const QString&amp;,const QString&amp;,int,int)" remove="all"/>
     <modify-function signature="warning(QWidget*,const QString&amp;,const QString&amp;,int,int,int)" remove="all"/>
     <modify-function signature="warning(QWidget*,const QString&amp;,const QString&amp;,const QString&amp;,const QString&amp;,const QString&amp;,int,int)" remove="all"/>
-    <modify-function signature="about(QWidget*,const QString&amp;,const QString&amp;)" allow-thread="yes"/>
-    <modify-function signature="aboutQt(QWidget*,const QString&amp;)" allow-thread="yes"/>
+    <modify-function signature="about(QWidget*,const QString&amp;,const QString&amp;)" allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
+    <modify-function signature="aboutQt(QWidget*,const QString&amp;)" allow-thread="yes">
+      <modify-argument index="1" pyi-type="Optional[PySide6.QtWidgets.QWidget]"/>
+    </modify-function>
   </object-type>
   <object-type name="QAbstractSpinBox">
     <enum-type name="ButtonSymbols"/>