=== tests/cases/compiler/conditionallyDuplicateOverloadsCausedByOverloadResolution.ts ===
declare function foo(func: (x: string, y: string) => any): boolean;
>foo : { (func: (x: string, y: string) => any): boolean; (func: (x: string, y: number) => any): string; }
>func : (x: string, y: string) => any
>x : string
>y : string

declare function foo(func: (x: string, y: number) => any): string;
>foo : { (func: (x: string, y: string) => any): boolean; (func: (x: string, y: number) => any): string; }
>func : (x: string, y: number) => any
>x : string
>y : number

var out = foo((x, y) => {
>out : boolean
>foo((x, y) => {    function bar(a: typeof x): void;    function bar(b: typeof y): void;    function bar() { }    return bar;}) : boolean
>foo : { (func: (x: string, y: string) => any): boolean; (func: (x: string, y: number) => any): string; }
>(x, y) => {    function bar(a: typeof x): void;    function bar(b: typeof y): void;    function bar() { }    return bar;} : (x: string, y: string) => { (a: string): void; (b: string): void; }
>x : string
>y : string

    function bar(a: typeof x): void;
>bar : { (a: string): void; (b: string): void; }
>a : string
>x : string

    function bar(b: typeof y): void;
>bar : { (a: string): void; (b: string): void; }
>b : string
>y : string

    function bar() { }
>bar : { (a: string): void; (b: string): void; }

    return bar;
>bar : { (a: string): void; (b: string): void; }

});

declare function foo2(func: (x: string, y: string) => any): boolean;
>foo2 : { (func: (x: string, y: string) => any): boolean; (func: (x: string, y: number) => any): string; }
>func : (x: string, y: string) => any
>x : string
>y : string

declare function foo2(func: (x: string, y: number) => any): string;
>foo2 : { (func: (x: string, y: string) => any): boolean; (func: (x: string, y: number) => any): string; }
>func : (x: string, y: number) => any
>x : string
>y : number

var out2 = foo2((x, y) => {
>out2 : boolean
>foo2((x, y) => {    var bar: {        (a: typeof x): void;        (b: typeof y): void;    };    return bar;}) : boolean
>foo2 : { (func: (x: string, y: string) => any): boolean; (func: (x: string, y: number) => any): string; }
>(x, y) => {    var bar: {        (a: typeof x): void;        (b: typeof y): void;    };    return bar;} : (x: string, y: string) => { (a: string): void; (b: string): void; }
>x : string
>y : string

    var bar: {
>bar : { (a: string): void; (b: string): void; }

        (a: typeof x): void;
>a : string
>x : string

        (b: typeof y): void;
>b : string
>y : string

    };
    return bar;
>bar : { (a: string): void; (b: string): void; }

});