// @strict: true
// @target: ES5

class A {
    public static "\""() {}
    public static x: number = 1;
    public static y: number = 1;
    private static _b: number = 2;
}

const a = new A();

a["\""] // Error
a['y']  // Error
a.y     // Error
A._b    // Error
A.a
