=== tests/cases/compiler/overloadCallTest.ts ===
class foo {
>foo : foo

    constructor() {
        function bar(): string;
>bar : { (): string; (s: string): any; }

        function bar(s:string);
>bar : { (): string; (s: string): any; }
>s : string

        function bar(foo?: string) { return "foo" };
>bar : { (): string; (s: string): any; }
>foo : string

        var test = bar("test");
>test : any
>bar("test") : any
>bar : { (): string; (s: string): any; }

        var goo = bar();
>goo : string
>bar() : string
>bar : { (): string; (s: string): any; }

        goo = bar("test");
>goo = bar("test") : any
>goo : string
>bar("test") : any
>bar : { (): string; (s: string): any; }
    }
 
}