tests/cases/compiler/infinitelyExpandingOverloads.ts(23,16): error TS1056: Accessors are only available when targeting ECMAScript 5 and higher.


==== tests/cases/compiler/infinitelyExpandingOverloads.ts (1 errors) ====
    interface KnockoutSubscription2<T> {
        target: KnockoutObservableBase2<T>;
    }
    interface KnockoutObservableBase2<T> {
        subscribe(callback: (newValue: T) => void, target?: any, topic?: string): KnockoutSubscription2<T>;
    }
    interface ValidationPlacement2<TValue> {
        initialize(validatable: Validatable2<TValue>): void;
    }
    interface Validatable2<TValue> {
        validators: KnockoutObservableBase2<Validator2<TValue>>;
    }
    class Validator2<TValue> {
        private _subscription: KnockoutSubscription2<TValue>;
    }
    class ViewModel<TValue> {
        public validationPlacements: Array<ValidationPlacement2<TValue>> = new Array<ValidationPlacement2<TValue>>();
    }
    class Widget<TValue> {
        constructor(viewModelType: new () => ViewModel<TValue>); // Shouldnt error on this overload
        constructor(viewModelType: new () => ViewModel<TValue>) {
        }
        public get options(): ViewModel<TValue> {
                   ~~~~~~~
!!! error TS1056: Accessors are only available when targeting ECMAScript 5 and higher.
            return null;
        }
    }