Moc: Parse error for uncommon property names (e.g. 'ä')

    Q_PROPERTY(int $ WRITE set$ READ $); // this is fine
    // Q_PROPERTY(int ä WRITE set$ READ $); // main.cpp: error: Parse error at "READ"
    Q_PROPERTY(int hä WRITE set$ READ $); // this is fine
    // Q_PROPERTY(int hä2 WRITE setHä READ hä); // error: no member named 'setH' in 'C'
    // Q_PROPERTY(int hä3 WRITE setA READ ä); // main.cpp: error: Parse error at "READ"
    // Q_PROPERTY(int ä WRITE setA READ a); // error: Parse error at "WRITE"
    // Q_PROPERTY(int ä WRITE setÄ READ ä); // error: Parse error at "WRITE"
    // note: \u00E4 is an unicode escape for "ä" in JS + CPP
    // Q_PROPERTY(int \u00E4 WRITE set\u00E4 READ \u00E4); // error: Parse error at "\"