=== tests/cases/compiler/illegalGenericWrapping1.ts ===
interface Sequence<T> {
>Sequence : Symbol(Sequence, Decl(illegalGenericWrapping1.ts, 0, 0))
>T : Symbol(T, Decl(illegalGenericWrapping1.ts, 0, 19))

    each(iterator: (value: T) => void ): void;
>each : Symbol(each, Decl(illegalGenericWrapping1.ts, 0, 23))
>iterator : Symbol(iterator, Decl(illegalGenericWrapping1.ts, 1, 9))
>value : Symbol(value, Decl(illegalGenericWrapping1.ts, 1, 20))
>T : Symbol(T, Decl(illegalGenericWrapping1.ts, 0, 19))

    map<U>(iterator: (value: T) => U): Sequence<U>;
>map : Symbol(map, Decl(illegalGenericWrapping1.ts, 1, 46))
>U : Symbol(U, Decl(illegalGenericWrapping1.ts, 2, 8))
>iterator : Symbol(iterator, Decl(illegalGenericWrapping1.ts, 2, 11))
>value : Symbol(value, Decl(illegalGenericWrapping1.ts, 2, 22))
>T : Symbol(T, Decl(illegalGenericWrapping1.ts, 0, 19))
>U : Symbol(U, Decl(illegalGenericWrapping1.ts, 2, 8))
>Sequence : Symbol(Sequence, Decl(illegalGenericWrapping1.ts, 0, 0))
>U : Symbol(U, Decl(illegalGenericWrapping1.ts, 2, 8))

    filter(iterator: (value: T) => boolean): Sequence<T>;
>filter : Symbol(filter, Decl(illegalGenericWrapping1.ts, 2, 51))
>iterator : Symbol(iterator, Decl(illegalGenericWrapping1.ts, 3, 11))
>value : Symbol(value, Decl(illegalGenericWrapping1.ts, 3, 22))
>T : Symbol(T, Decl(illegalGenericWrapping1.ts, 0, 19))
>Sequence : Symbol(Sequence, Decl(illegalGenericWrapping1.ts, 0, 0))
>T : Symbol(T, Decl(illegalGenericWrapping1.ts, 0, 19))

    groupBy<K>(keySelector: (value: T) => K): Sequence<{ key: K; items: Sequence<T>; }>;
>groupBy : Symbol(groupBy, Decl(illegalGenericWrapping1.ts, 3, 57))
>K : Symbol(K, Decl(illegalGenericWrapping1.ts, 4, 12))
>keySelector : Symbol(keySelector, Decl(illegalGenericWrapping1.ts, 4, 15))
>value : Symbol(value, Decl(illegalGenericWrapping1.ts, 4, 29))
>T : Symbol(T, Decl(illegalGenericWrapping1.ts, 0, 19))
>K : Symbol(K, Decl(illegalGenericWrapping1.ts, 4, 12))
>Sequence : Symbol(Sequence, Decl(illegalGenericWrapping1.ts, 0, 0))
>key : Symbol(key, Decl(illegalGenericWrapping1.ts, 4, 56))
>K : Symbol(K, Decl(illegalGenericWrapping1.ts, 4, 12))
>items : Symbol(items, Decl(illegalGenericWrapping1.ts, 4, 64))
>Sequence : Symbol(Sequence, Decl(illegalGenericWrapping1.ts, 0, 0))
>T : Symbol(T, Decl(illegalGenericWrapping1.ts, 0, 19))
}