//// [typeIdentityConsidersBrands.ts]
class X{
      name: string;
}

class Y{
      name: string;
}

class X_1 {
    private name: string;
}

class Y_1 {
    private name: string;
}

function foo(arg: X){}
 
var a = new Y();
var b = new X();
 
a = b; // ok
foo(a); // ok

var a2 = new Y_1();
var b2 = new X_1();

function foo2(arg: X_1) { }

a2 = b2; // should error
foo2(a2); // should error


//// [typeIdentityConsidersBrands.js]
var X = (function () {
    function X() {
    }
    return X;
})();
var Y = (function () {
    function Y() {
    }
    return Y;
})();
var X_1 = (function () {
    function X_1() {
    }
    return X_1;
})();
var Y_1 = (function () {
    function Y_1() {
    }
    return Y_1;
})();
function foo(arg) {
}
var a = new Y();
var b = new X();
a = b;
foo(a);
var a2 = new Y_1();
var b2 = new X_1();
function foo2(arg) {
}
a2 = b2;
foo2(a2);