=== tests/cases/conformance/expressions/typeGuards/typeGuardsInGlobal.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(typeGuardsInGlobal.ts, 4, 3))

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

if (typeof var1 === "string") {
>var1 : Symbol(var1, Decl(typeGuardsInGlobal.ts, 5, 3))

    num = var1.length; // string
>num : Symbol(num, Decl(typeGuardsInGlobal.ts, 4, 3))
>var1.length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
>var1 : Symbol(var1, Decl(typeGuardsInGlobal.ts, 5, 3))
>length : Symbol(String.length, Decl(lib.d.ts, 414, 19))
}
else {
    num = var1; // number
>num : Symbol(num, Decl(typeGuardsInGlobal.ts, 4, 3))
>var1 : Symbol(var1, Decl(typeGuardsInGlobal.ts, 5, 3))
}