=== tests/cases/conformance/expressions/typeGuards/typeGuardsInFunction.ts ===
// Note that type guards affect types of variables and parameters only and 
// have no effect on members of objects such as properties. 

// variables in global
var num: number;
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))

var var1: string | number;
>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))

// Inside function declaration
function f(param: string | number) {
>f : Symbol(f, Decl(typeGuardsInFunction.ts, 5, 26))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 7, 11))

    // global vars in function declaration
    num =  typeof var1 === "string" && var1.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
>var1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

    // variables in function declaration
    var var2: string | number;
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 12, 7))

    num = typeof var2 === "string" && var2.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 12, 7))
>var2.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 12, 7))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

    // parameters in function declaration
    num = typeof param === "string" && param.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 7, 11))
>param.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 7, 11))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
}
// local function declaration
function f1(param: string | number) {
>f1 : Symbol(f1, Decl(typeGuardsInFunction.ts, 17, 1))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 19, 12))

    var var2: string | number;
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 20, 7))

    function f2(param1: string | number) {
>f2 : Symbol(f2, Decl(typeGuardsInFunction.ts, 20, 30))
>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 21, 16))

        // global vars in function declaration
        num = typeof var1 === "string" && var1.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
>var1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        // variables from outer function declaration
        num = typeof var2 === "string" && var2.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 20, 7))
>var2.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 20, 7))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        // parameters in outer declaration
        num = typeof param === "string" && param.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 19, 12))
>param.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 19, 12))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        // local
        var var3: string | number;
>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 32, 11))

        num = typeof var3 === "string" && var3.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 32, 11))
>var3.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 32, 11))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        num = typeof param1 === "string" && param1.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 21, 16))
>param1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 21, 16))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
    }
}
// Function expression
function f2(param: string | number) {
>f2 : Symbol(f2, Decl(typeGuardsInFunction.ts, 36, 1))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 38, 12))

    // variables in function declaration
    var var2: string | number;
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 40, 7))

    // variables in function expressions
    var r = function (param1: string | number) {
>r : Symbol(r, Decl(typeGuardsInFunction.ts, 42, 7))
>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 42, 22))

        // global vars in function declaration
        num = typeof var1 === "string" && var1.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
>var1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        // variables from outer function declaration
        num = typeof var2 === "string" && var2.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 40, 7))
>var2.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 40, 7))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        // parameters in outer declaration
        num = typeof param === "string" && param.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 38, 12))
>param.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 38, 12))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        // local
        var var3: string | number;
>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 53, 11))

        num = typeof var3 === "string" && var3.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 53, 11))
>var3.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 53, 11))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        num = typeof param1 === "string" && param1.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 42, 22))
>param1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 42, 22))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

    } (param);
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 38, 12))
}
// Arrow expression
function f3(param: string | number) {
>f3 : Symbol(f3, Decl(typeGuardsInFunction.ts, 57, 1))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 59, 12))

    // variables in function declaration
    var var2: string | number;
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 61, 7))

    // variables in function expressions
    var r = ((param1: string | number) => {
>r : Symbol(r, Decl(typeGuardsInFunction.ts, 63, 7))
>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 63, 14))

        // global vars in function declaration
        num = typeof var1 === "string" && var1.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
>var1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var1 : Symbol(var1, Decl(typeGuardsInFunction.ts, 5, 3))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        // variables from outer function declaration
        num = typeof var2 === "string" && var2.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 61, 7))
>var2.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 61, 7))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        // parameters in outer declaration
        num = typeof param === "string" && param.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 59, 12))
>param.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 59, 12))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        // local
        var var3: string | number;
>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 74, 11))

        num = typeof var3 === "string" && var3.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 74, 11))
>var3.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var3 : Symbol(var3, Decl(typeGuardsInFunction.ts, 74, 11))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

        num = typeof param1 === "string" && param1.length; // string
>num : Symbol(num, Decl(typeGuardsInFunction.ts, 4, 3))
>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 63, 14))
>param1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>param1 : Symbol(param1, Decl(typeGuardsInFunction.ts, 63, 14))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))

    })(param);
>param : Symbol(param, Decl(typeGuardsInFunction.ts, 59, 12))
}
// Return type of function
// Inside function declaration
var strOrNum: string | number;
>strOrNum : Symbol(strOrNum, Decl(typeGuardsInFunction.ts, 81, 3))

function f4() {
>f4 : Symbol(f4, Decl(typeGuardsInFunction.ts, 81, 30))

    var var2: string | number = strOrNum;
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 83, 7))
>strOrNum : Symbol(strOrNum, Decl(typeGuardsInFunction.ts, 81, 3))

    return var2;
>var2 : Symbol(var2, Decl(typeGuardsInFunction.ts, 83, 7))
}
strOrNum = typeof f4() === "string" && f4(); // string | number 
>strOrNum : Symbol(strOrNum, Decl(typeGuardsInFunction.ts, 81, 3))
>f4 : Symbol(f4, Decl(typeGuardsInFunction.ts, 81, 30))
>f4 : Symbol(f4, Decl(typeGuardsInFunction.ts, 81, 30))