=== tests/cases/conformance/es6/for-ofStatements/for-of40.ts ===
var map = new Map([["", true]]);
>map : Map<string, boolean>
>new Map([["", true]]) : Map<string, boolean>
>Map : MapConstructor
>[["", true]] : [string, boolean][]
>["", true] : [string, boolean]
>"" : string
>true : boolean

for (var [k = "", v = false] of map) {
>k : string
>"" : string
>v : boolean
>false : boolean
>map : Map<string, boolean>

    k;
>k : string

    v;
>v : boolean
}