=== tests/cases/compiler/illegalGenericWrapping1.ts ===
interface Sequence<T> {
>Sequence : Sequence<T>
>T : T

    each(iterator: (value: T) => void ): void;
>each : (iterator: (value: T) => void) => void
>iterator : (value: T) => void
>value : T
>T : T

    map<U>(iterator: (value: T) => U): Sequence<U>;
>map : <U>(iterator: (value: T) => U) => Sequence<U>
>U : U
>iterator : (value: T) => U
>value : T
>T : T
>U : U
>Sequence : Sequence<T>
>U : U

    filter(iterator: (value: T) => boolean): Sequence<T>;
>filter : (iterator: (value: T) => boolean) => Sequence<T>
>iterator : (value: T) => boolean
>value : T
>T : T
>Sequence : Sequence<T>
>T : T

    groupBy<K>(keySelector: (value: T) => K): Sequence<{ key: K; items: Sequence<T>; }>;
>groupBy : <K>(keySelector: (value: T) => K) => Sequence<{ key: K; items: Sequence<T>; }>
>K : K
>keySelector : (value: T) => K
>value : T
>T : T
>K : K
>Sequence : Sequence<T>
>key : K
>K : K
>items : Sequence<T>
>Sequence : Sequence<T>
>T : T
}