add flatten/flatMap to features.txt and mark appropriate tests

features.txt

@@ -55,6 +55,11 @@ regexp-unicode-property-escapes
 Atomics
 SharedArrayBuffer
 
+# Array.prototype.flatten and Array.prototype.flatMap
+# https://github.com/tc39/proposal-flatMap
+Array.prototype.flatten
+Array.prototype.flatMap
+
 # Standard language features
 #
 # Language features that have been included in a published version of the

test/built-ins/Array/prototype/flatMap/array-like-objects.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatMap
 description: >
     array-like objects can be flattened
 includes: [compareArray.js]
+features: [Array.prototype.flatMap]
 ---*/
 
 function getArgumentsObject() {

test/built-ins/Array/prototype/flatMap/bound-function-argument.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatMap
 description: >
     Behavior when given a bound function
 includes: [compareArray.js]
+features: [Array.prototype.flatMap]
 ---*/
 
 var a = [0, 0];

test/built-ins/Array/prototype/flatMap/depth-always-one.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatMap
 description: >
     Behavior when array is depth more than 1
 includes: [compareArray.js]
+features: [Array.prototype.flatMap]
 ---*/
 
 assert.compareArray([1, 2].flatMap(function(e) {

test/built-ins/Array/prototype/flatMap/length.js

@@ -6,6 +6,7 @@ description: Array.prototype.flatMap.length value and descriptor.
 info: >
   17 ECMAScript Standard Built-in Objects
 includes: [propertyHelper.js]
+features: [Array.prototype.flatMap]
 ---*/
 
 assert.sameValue(

test/built-ins/Array/prototype/flatMap/name.js

@@ -6,6 +6,7 @@ description: Array.prototype.flatmap name value and descriptor.
 info: >
   17 ECMAScript Standard Built-in Objects
 includes: [propertyHelper.js]
+features: [Array.prototype.flatMap]
 ---*/
 
 assert.sameValue(

test/built-ins/Array/prototype/flatMap/non-callable-argument-throws.js

@@ -4,6 +4,7 @@
 esid: sec-array.prototype.flatMap
 description: >
     non callable argument should throw TypeError Exception
+features: [Array.prototype.flatMap]
 ---*/
 
 assert.throws(TypeError, function () {

test/built-ins/Array/prototype/flatMap/non-object-ctor-throws.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatMap
 description: >
     Behavior when `constructor` property is neither an Object nor undefined
     - if IsConstructor(C) is false, throw a TypeError exception.
+features: [Array.prototype.flatMap]
 ---*/
 
 var a = [];

test/built-ins/Array/prototype/flatMap/null-undefined-input-throws.js

@@ -4,6 +4,7 @@
 esid: sec-array.prototype.flatMap
 description: >
     null or undefined should throw TypeError Exception
+features: [Array.prototype.flatMap]
 ---*/
 
 assert.throws(TypeError, function() {

test/built-ins/Array/prototype/flatMap/thisArg-argument.js

@@ -7,6 +7,7 @@ description: >
     Array.prototype.flatMap ( mapperFunction [ , thisArg ] )
 includes: [compareArray.js]
 flags: [onlyStrict]
+features: [Array.prototype.flatMap]
 ---*/
 
 var a = {};

test/built-ins/Array/prototype/flatten/array-like-objects.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatten
 description: >
     array-like objects can be flattened
 includes: [compareArray.js]
+features: [Array.prototype.flatten]
 ---*/
 
 function getArgumentsObject() {

test/built-ins/Array/prototype/flatten/bound-function-call.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatten
 description: >
     using bound functions
 includes: [compareArray.js]
+features: [Array.prototype.flatten]
 ---*/
 
 var a = [[0],[1]];

test/built-ins/Array/prototype/flatten/empty-array-elements.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatten
 description: >
     arrays with empty arrays elements
 includes: [compareArray.js]
+features: [Array.prototype.flatten]
 ---*/
 
 var a = {};

test/built-ins/Array/prototype/flatten/empty-object-elements.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatten
 description: >
     arrays with empty object elements
 includes: [compareArray.js]
+features: [Array.prototype.flatten]
 ---*/
 
 var a = {}, b = {};

test/built-ins/Array/prototype/flatten/length.js

@@ -6,6 +6,7 @@ description: Array.prototype.flatten.length value and descriptor.
 info: >
   17 ECMAScript Standard Built-in Objects
 includes: [propertyHelper.js]
+features: [Array.prototype.flatten]
 ---*/
 
 assert.sameValue(

test/built-ins/Array/prototype/flatten/name.js

@@ -7,6 +7,7 @@ description: >
 info: >
   17 ECMAScript Standard Built-in Objects
 includes: [propertyHelper.js]
+features: [Array.prototype.flatten]
 ---*/
 
 assert.sameValue(

test/built-ins/Array/prototype/flatten/non-numeric-depth-should-not-throw.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatten
 description: >
     if the argument is a string or object, the depthNum is 0
 includes: [compareArray.js]
+features: [Array.prototype.flatten]
 ---*/
 
 var a = [1, [2]];

test/built-ins/Array/prototype/flatten/non-object-ctor-throws.js

@@ -5,6 +5,7 @@ esid: sec-array.prototype.flatten
 description: >
     Behavior when `constructor` property is neither an Object nor undefined
     - if IsConstructor(C) is false, throw a TypeError exception.
+features: [Array.prototype.flatten]
 ---*/
 
 var a = [];

test/built-ins/Array/prototype/flatten/null-undefined-elements.js

@@ -5,7 +5,9 @@ esid: sec-array.prototype.flatten
 description: >
     arrays with null, and undefined
 includes: [compareArray.js]
+features: [Array.prototype.flatten]
 ---*/
+
 var a = [void 0];
 
 assert(compareArray([1, null, void 0].flatten(), [1, null, undefined]));

test/built-ins/Array/prototype/flatten/null-undefined-input-throws.js

@@ -4,6 +4,7 @@
 esid: sec-array.prototype.flatten
 description: >
     null or undefined should throw TypeError Exception
+features: [Array.prototype.flatten]
 ---*/
 
 assert.throws(TypeError, function() {