=== tests/cases/conformance/expressions/typeGuards/typeGuardsInFunctionAndModuleBlock.ts ===
// typeguards are scoped in function/module block

function foo(x: number | string | boolean) {
>foo : (x: string | number | boolean) => string
>x : string | number | boolean

    return typeof x === "string"
>typeof x === "string"        ? x        : function f() {            var b = x; // number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        } () : string
>typeof x === "string" : boolean
>typeof x : string
>x : string | number | boolean
>"string" : string

        ? x
>x : string

        : function f() {
>function f() {            var b = x; // number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        } () : string
>function f() {            var b = x; // number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        } : () => string
>f : () => string

            var b = x; // number | boolean
>b : number | boolean
>x : number | boolean

            return typeof x === "boolean"
>typeof x === "boolean"                ? x.toString() // boolean                : x.toString() : string
>typeof x === "boolean" : boolean
>typeof x : string
>x : number | boolean
>"boolean" : string

                ? x.toString() // boolean
>x.toString() : string
>x.toString : () => string
>x : boolean
>toString : () => string

                : x.toString(); // number
>x.toString() : string
>x.toString : (radix?: number) => string
>x : number
>toString : (radix?: number) => string

        } ();
}
function foo2(x: number | string | boolean) {
>foo2 : (x: string | number | boolean) => string
>x : string | number | boolean

    return typeof x === "string"
>typeof x === "string"        ? x        : function f(a: number | boolean) {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        } (x) : string
>typeof x === "string" : boolean
>typeof x : string
>x : string | number | boolean
>"string" : string

        ? x
>x : string

        : function f(a: number | boolean) {
>function f(a: number | boolean) {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        } (x) : string
>function f(a: number | boolean) {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        } : (a: number | boolean) => string
>f : (a: number | boolean) => string
>a : number | boolean

            var b = x; // new scope - number | boolean
>b : number | boolean
>x : number | boolean

            return typeof x === "boolean"
>typeof x === "boolean"                ? x.toString() // boolean                : x.toString() : string
>typeof x === "boolean" : boolean
>typeof x : string
>x : number | boolean
>"boolean" : string

                ? x.toString() // boolean
>x.toString() : string
>x.toString : () => string
>x : boolean
>toString : () => string

                : x.toString(); // number
>x.toString() : string
>x.toString : (radix?: number) => string
>x : number
>toString : (radix?: number) => string

        } (x); // x here is narrowed to number | boolean
>x : number | boolean
}
function foo3(x: number | string | boolean) {
>foo3 : (x: string | number | boolean) => string
>x : string | number | boolean

    return typeof x === "string"
>typeof x === "string"        ? x        : (() => {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        })() : string
>typeof x === "string" : boolean
>typeof x : string
>x : string | number | boolean
>"string" : string

        ? x
>x : string

        : (() => {
>(() => {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        })() : string
>(() => {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        }) : () => string
>() => {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        } : () => string

            var b = x; // new scope - number | boolean
>b : number | boolean
>x : number | boolean

            return typeof x === "boolean"
>typeof x === "boolean"                ? x.toString() // boolean                : x.toString() : string
>typeof x === "boolean" : boolean
>typeof x : string
>x : number | boolean
>"boolean" : string

                ? x.toString() // boolean
>x.toString() : string
>x.toString : () => string
>x : boolean
>toString : () => string

                : x.toString(); // number
>x.toString() : string
>x.toString : (radix?: number) => string
>x : number
>toString : (radix?: number) => string

        })();
}
function foo4(x: number | string | boolean) {
>foo4 : (x: string | number | boolean) => string
>x : string | number | boolean

    return typeof x === "string"
>typeof x === "string"        ? x        : ((a: number | boolean) => {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        })(x) : string
>typeof x === "string" : boolean
>typeof x : string
>x : string | number | boolean
>"string" : string

        ? x
>x : string

        : ((a: number | boolean) => {
>((a: number | boolean) => {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        })(x) : string
>((a: number | boolean) => {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        }) : (a: number | boolean) => string
>(a: number | boolean) => {            var b = x; // new scope - number | boolean            return typeof x === "boolean"                ? x.toString() // boolean                : x.toString(); // number        } : (a: number | boolean) => string
>a : number | boolean

            var b = x; // new scope - number | boolean
>b : number | boolean
>x : number | boolean

            return typeof x === "boolean"
>typeof x === "boolean"                ? x.toString() // boolean                : x.toString() : string
>typeof x === "boolean" : boolean
>typeof x : string
>x : number | boolean
>"boolean" : string

                ? x.toString() // boolean
>x.toString() : string
>x.toString : () => string
>x : boolean
>toString : () => string

                : x.toString(); // number
>x.toString() : string
>x.toString : (radix?: number) => string
>x : number
>toString : (radix?: number) => string

        })(x); // x here is narrowed to number | boolean
>x : number | boolean
}
// Type guards affect nested function expressions, but not nested function declarations
function foo5(x: number | string | boolean) {
>foo5 : (x: string | number | boolean) => void
>x : string | number | boolean

    if (typeof x === "string") {
>typeof x === "string" : boolean
>typeof x : string
>x : string | number | boolean
>"string" : string

        var y = x; // string;
>y : string
>x : string

        function foo() {
>foo : () => void

            var z = x; // number | string | boolean, type guard has no effect
>z : string | number | boolean
>x : string | number | boolean
        }
    }
}
module m {
>m : typeof m

    var x: number | string | boolean;
>x : string | number | boolean

    module m2 {
>m2 : typeof m2

        var b = x; // new scope - number | boolean | string
>b : string | number | boolean
>x : string | number | boolean

        var y: string;
>y : string

        if (typeof x === "string") {
>typeof x === "string" : boolean
>typeof x : string
>x : string | number | boolean
>"string" : string

            y = x // string;
>y = x : string
>y : string
>x : string

        } else {
            y = typeof x === "boolean"
>y = typeof x === "boolean"            ? x.toString() // boolean            : x.toString() : string
>y : string
>typeof x === "boolean"            ? x.toString() // boolean            : x.toString() : string
>typeof x === "boolean" : boolean
>typeof x : string
>x : number | boolean
>"boolean" : string

            ? x.toString() // boolean
>x.toString() : string
>x.toString : () => string
>x : boolean
>toString : () => string

            : x.toString(); // number
>x.toString() : string
>x.toString : (radix?: number) => string
>x : number
>toString : (radix?: number) => string
        }
    }
}
module m1 {
>m1 : typeof m1

    var x: number | string | boolean;
>x : string | number | boolean

    module m2.m3 {
>m2 : typeof m2
>m3 : typeof m3

        var b = x; // new scope - number | boolean | string
>b : string | number | boolean
>x : string | number | boolean

        var y: string;
>y : string

        if (typeof x === "string") {
>typeof x === "string" : boolean
>typeof x : string
>x : string | number | boolean
>"string" : string

            y = x // string;
>y = x : string
>y : string
>x : string

        } else {
            y = typeof x === "boolean"
>y = typeof x === "boolean"            ? x.toString() // boolean            : x.toString() : string
>y : string
>typeof x === "boolean"            ? x.toString() // boolean            : x.toString() : string
>typeof x === "boolean" : boolean
>typeof x : string
>x : number | boolean
>"boolean" : string

            ? x.toString() // boolean
>x.toString() : string
>x.toString : () => string
>x : boolean
>toString : () => string

            : x.toString(); // number
>x.toString() : string
>x.toString : (radix?: number) => string
>x : number
>toString : (radix?: number) => string
        }
    }
}