Tests that console properly displays information about ES6 features.

console-format-es6-2.js:17 MapIterator {41, {…}}
console-format-es6-2.js:18 [MapIterator]
globals[0]
MapIterator {41, {…}}
console-format-es6-2.js:17 MapIterator {42, {…}}
console-format-es6-2.js:18 [MapIterator]
globals[1]
MapIterator {42, {…}}
console-format-es6-2.js:17 MapIterator {41 => 42, {…} => {…}}
console-format-es6-2.js:18 [MapIterator]
globals[2]
MapIterator {41 => 42, {…} => {…}}
console-format-es6-2.js:17 SetIterator {41, {…}}
console-format-es6-2.js:18 [SetIterator]
globals[3]
SetIterator {41, {…}}
console-format-es6-2.js:17 SetIterator {41, {…}}
console-format-es6-2.js:18 [SetIterator]
globals[4]
SetIterator {41, {…}}
console-format-es6-2.js:17 SetIterator {41 => 41, {…} => {…}}
console-format-es6-2.js:18 [SetIterator]
globals[5]
SetIterator {41 => 41, {…} => {…}}
console-format-es6-2.js:17 MapIterator {{…}}
console-format-es6-2.js:18 [MapIterator]
globals[6]
MapIterator {{…}}
console-format-es6-2.js:17 SetIterator {{…}}
console-format-es6-2.js:18 [SetIterator]
globals[7]
SetIterator {{…}}
Expanded all messages
console-format-es6-2.js:17 MapIterator {41, {…}}
    [[Entries]]
        0: 41
        1: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Map Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "keys"
console-format-es6-2.js:18 [MapIterator]
    0: MapIterator {41, {…}}
    length: 1
    [[Prototype]]: Array(0)
globals[0]
MapIterator {41, {…}}
    [[Entries]]
        0: 41
        1: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Map Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "keys"
console-format-es6-2.js:17 MapIterator {42, {…}}
    [[Entries]]
        0: 42
        1: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Map Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "values"
console-format-es6-2.js:18 [MapIterator]
    0: MapIterator {42, {…}}
    length: 1
    [[Prototype]]: Array(0)
globals[1]
MapIterator {42, {…}}
    [[Entries]]
        0: 42
        1: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Map Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "values"
console-format-es6-2.js:17 MapIterator {41 => 42, {…} => {…}}
    [[Entries]]
        0: {41 => 42}
        1: {Object => Object}
    constructor: ƒ Iterator()
    [[Prototype]]: Map Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "entries"
console-format-es6-2.js:18 [MapIterator]
    0: MapIterator {41 => 42, {…} => {…}}
    length: 1
    [[Prototype]]: Array(0)
globals[2]
MapIterator {41 => 42, {…} => {…}}
    [[Entries]]
        0: {41 => 42}
        1: {Object => Object}
    constructor: ƒ Iterator()
    [[Prototype]]: Map Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "entries"
console-format-es6-2.js:17 SetIterator {41, {…}}
    [[Entries]]
        0: 41
        1: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Set Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "values"
console-format-es6-2.js:18 [SetIterator]
    0: SetIterator {41, {…}}
    length: 1
    [[Prototype]]: Array(0)
globals[3]
SetIterator {41, {…}}
    [[Entries]]
        0: 41
        1: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Set Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "values"
console-format-es6-2.js:17 SetIterator {41, {…}}
    [[Entries]]
        0: 41
        1: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Set Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "values"
console-format-es6-2.js:18 [SetIterator]
    0: SetIterator {41, {…}}
    length: 1
    [[Prototype]]: Array(0)
globals[4]
SetIterator {41, {…}}
    [[Entries]]
        0: 41
        1: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Set Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "values"
console-format-es6-2.js:17 SetIterator {41 => 41, {…} => {…}}
    [[Entries]]
        0: {41 => 41}
        1: {Object => Object}
    constructor: ƒ Iterator()
    [[Prototype]]: Set Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "entries"
console-format-es6-2.js:18 [SetIterator]
    0: SetIterator {41 => 41, {…} => {…}}
    length: 1
    [[Prototype]]: Array(0)
globals[5]
SetIterator {41 => 41, {…} => {…}}
    [[Entries]]
        0: {41 => 41}
        1: {Object => Object}
    constructor: ƒ Iterator()
    [[Prototype]]: Set Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 0
    [[IteratorKind]]: "entries"
console-format-es6-2.js:17 MapIterator {{…}}
    [[Entries]]
        0: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Map Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 1
    [[IteratorKind]]: "values"
console-format-es6-2.js:18 [MapIterator]
    0: MapIterator {{…}}
    length: 1
    [[Prototype]]: Array(0)
globals[6]
MapIterator {{…}}
    [[Entries]]
        0: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Map Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 1
    [[IteratorKind]]: "values"
console-format-es6-2.js:17 SetIterator {{…}}
    [[Entries]]
        0: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Set Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 1
    [[IteratorKind]]: "values"
console-format-es6-2.js:18 [SetIterator]
    0: SetIterator {{…}}
    length: 1
    [[Prototype]]: Array(0)
globals[7]
SetIterator {{…}}
    [[Entries]]
        0: Object
    constructor: ƒ Iterator()
    [[Prototype]]: Set Iterator
    [[IteratorHasMore]]: true
    [[IteratorIndex]]: 1
    [[IteratorKind]]: "values"