=== tests/cases/compiler/genericAndNonGenericOverload1.ts ===
interface callable2<T> {
>callable2 : callable2<T>
>T : T

    (a: T): T;
>a : T
>T : T
>T : T

    <Z>(a: T): Z;
>Z : Z
>a : T
>T : T
>Z : Z
}
var c2: callable2<number>;
>c2 : callable2<number>
>callable2 : callable2<T>

c2<string>(1);
>c2<string>(1) : string
>c2 : callable2<number>
>1 : number