Argument `&classname` highlighted incorrectly

[alexr00]

Checklist

• [x] This problem exists even with the setting "C_Cpp.enhancedColorization": "Disabled"

If Disabling that^ makes the problem go away, then follow this to make an issue on the C++ extension: https://github.com/microsoft/vscode-cpptools/issues/new/choose

The code with a problem is:

static QAccessibleInterface *factory(const QString &classname, QObject *object) {
    if (classname == QLatin1String("VBase") && object && object->isWidgetType())
        return new Base(static_cast<QWidget *>(object));

    return 0;
}

It looks like:

It should look like:

This classname should be highlighted as identifier, but it's got the class keyword and highlighted as Keyword not identifier. And when I restart VSCode, it's occurs again.

Originally from @AlmondRyan in https://github.com/microsoft/vscode/issues/210151