const A = class /* before body */ { /* inside body */ };
const B = class /* before name */ X /* before body */ { /* inside body */ };
const C = class /* before extends */ extends /* after extends */ X /* before body */ {/* inside body */};
const D = class /* before name */ X /* before extends */ extends /* after extends */ X /* before body */ {/* inside body */};

class /* before name */ E /* before body */ { /* inside body */ }
class /* before name */ F /* before extends */ extends /* after extends */ X /* before body */ {/* inside body */}