classWithNoConstructorOrBaseClass.ts(2,5): error TS2564: Property 'x' has no initializer and is not definitely assigned in the constructor.
classWithNoConstructorOrBaseClass.ts(9,5): error TS2564: Property 'x' has no initializer and is not definitely assigned in the constructor.
classWithNoConstructorOrBaseClass.ts(10,5): error TS2564: Property 'y' has no initializer and is not definitely assigned in the constructor.


==== classWithNoConstructorOrBaseClass.ts (3 errors) ====
    class C {
        x: string;
        ~
!!! error TS2564: Property 'x' has no initializer and is not definitely assigned in the constructor.
    }
    
    var c = new C();
    var r = C;
    
    class D<T,U> {
        x: T;
        ~
!!! error TS2564: Property 'x' has no initializer and is not definitely assigned in the constructor.
        y: U;
        ~
!!! error TS2564: Property 'y' has no initializer and is not definitely assigned in the constructor.
    }
    
    var d = new D();
    var d2 = new D<string, number>();
    var r2 = D;
    