EditorManager: Remove QString openEditor(At) overloads

In favor of the FilePath/Link ones.

Change-Id: I5caf9e0f8de304ff4ee12329557aa50a6f3a0c69
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/python/pythonrunconfiguration.cpp

@@ -123,7 +123,7 @@ private:
             return false;
         const QString fileName = match.captured(3);
         const int lineNumber = match.captured(4).toInt();
-        Core::EditorManager::openEditorAt(fileName, lineNumber);
+        Core::EditorManager::openEditorAt({FilePath::fromString(fileName), lineNumber});
         return true;
     }