=== tests/cases/compiler/promiseTest.ts ===

interface Promise<T> {
>Promise : Promise<T>, Symbol(Promise, Decl(promiseTest.ts, 0, 0))
>T : T, Symbol(T, Decl(promiseTest.ts, 1, 18))

    then<A>(success?: (value: T) => Promise<A>): Promise<A>;
>then : { <A>(success?: (value: T) => Promise<A>): Promise<A>; <B>(success?: (value: T) => B): Promise<B>; }, Symbol(then, Decl(promiseTest.ts, 1, 22), Decl(promiseTest.ts, 2, 60))
>A : A, Symbol(A, Decl(promiseTest.ts, 2, 9))
>success : (value: T) => Promise<A>, Symbol(success, Decl(promiseTest.ts, 2, 12))
>value : T, Symbol(value, Decl(promiseTest.ts, 2, 23))
>T : T, Symbol(T, Decl(promiseTest.ts, 1, 18))
>Promise : Promise<T>, Symbol(Promise, Decl(promiseTest.ts, 0, 0))
>A : A, Symbol(A, Decl(promiseTest.ts, 2, 9))
>Promise : Promise<T>, Symbol(Promise, Decl(promiseTest.ts, 0, 0))
>A : A, Symbol(A, Decl(promiseTest.ts, 2, 9))

    then<B>(success?: (value: T) => B): Promise<B>;
>then : { <A>(success?: (value: T) => Promise<A>): Promise<A>; <B>(success?: (value: T) => B): Promise<B>; }, Symbol(then, Decl(promiseTest.ts, 1, 22), Decl(promiseTest.ts, 2, 60))
>B : B, Symbol(B, Decl(promiseTest.ts, 3, 9))
>success : (value: T) => B, Symbol(success, Decl(promiseTest.ts, 3, 12))
>value : T, Symbol(value, Decl(promiseTest.ts, 3, 23))
>T : T, Symbol(T, Decl(promiseTest.ts, 1, 18))
>B : B, Symbol(B, Decl(promiseTest.ts, 3, 9))
>Promise : Promise<T>, Symbol(Promise, Decl(promiseTest.ts, 0, 0))
>B : B, Symbol(B, Decl(promiseTest.ts, 3, 9))

    data: T;
>data : T, Symbol(data, Decl(promiseTest.ts, 3, 51))
>T : T, Symbol(T, Decl(promiseTest.ts, 1, 18))
}

var p: Promise<number> = null;
>p : Promise<number>, Symbol(p, Decl(promiseTest.ts, 7, 3))
>Promise : Promise<T>, Symbol(Promise, Decl(promiseTest.ts, 0, 0))
>null : null

var p2 = p.then(function (x) {
>p2 : Promise<number>, Symbol(p2, Decl(promiseTest.ts, 8, 3))
>p.then(function (x) {    return p;} ) : Promise<number>
>p.then : { <A>(success?: (value: number) => Promise<A>): Promise<A>; <B>(success?: (value: number) => B): Promise<B>; }, Symbol(Promise.then, Decl(promiseTest.ts, 1, 22), Decl(promiseTest.ts, 2, 60))
>p : Promise<number>, Symbol(p, Decl(promiseTest.ts, 7, 3))
>then : { <A>(success?: (value: number) => Promise<A>): Promise<A>; <B>(success?: (value: number) => B): Promise<B>; }, Symbol(Promise.then, Decl(promiseTest.ts, 1, 22), Decl(promiseTest.ts, 2, 60))
>function (x) {    return p;} : (x: number) => Promise<number>
>x : number, Symbol(x, Decl(promiseTest.ts, 8, 26))

    return p;
>p : Promise<number>, Symbol(p, Decl(promiseTest.ts, 7, 3))

} );

var x = p2.data; // number
>x : number, Symbol(x, Decl(promiseTest.ts, 12, 3))
>p2.data : number, Symbol(Promise.data, Decl(promiseTest.ts, 3, 51))
>p2 : Promise<number>, Symbol(p2, Decl(promiseTest.ts, 8, 3))
>data : number, Symbol(Promise.data, Decl(promiseTest.ts, 3, 51))