//// [genericConstructExpressionWithoutArgs.ts]
class B { }
var b = new B; // no error
 
class C<T> {
   x: T;
}

var c = new C // C<any>
var c2 = new C<number> // error, type params are actually part of the arg list so you need both


//// [genericConstructExpressionWithoutArgs.js]
var B = (function () {
    function B() {
    }
    return B;
})();
var b = new B; // no error
var C = (function () {
    function C() {
    }
    return C;
})();
var c = new C; // C<any>
var c2 = new C(); // error, type params are actually part of the arg list so you need both