[test] Add array destructuring micro-benchmarks.

test/js-perf-test/SixSpeed/array_destructuring/array_destructuring.js

Index: test/js-perf-test/SixSpeed/array_destructuring/array_destructuring.js
diff --git a/test/js-perf-test/SixSpeed/object_literals/object_literals.js b/test/js-perf-test/SixSpeed/array_destructuring/array_destructuring.js
similarity index 77%
copy from test/js-perf-test/SixSpeed/object_literals/object_literals.js
copy to test/js-perf-test/SixSpeed/array_destructuring/array_destructuring.js
index 831e173ec249138710b102273564a322971e0fa8..f4a1d53f5c813901a98531f222a97bef9a4719a3 100644
--- a/test/js-perf-test/SixSpeed/object_literals/object_literals.js
+++ b/test/js-perf-test/SixSpeed/array_destructuring/array_destructuring.js
@@ -6,11 +6,11 @@
 // Copyright 2014 Kevin Decker <https://github.com/kpdecker/six-speed/>
 
 
-new BenchmarkSuite('ObjectLiterals-ES5', [1000], [
+new BenchmarkSuite('ArrayDestructuring-ES5', [1000], [
   new Benchmark('ES5', false, false, 0, ES5),
 ]);
 
-new BenchmarkSuite('ObjectLiterals-ES6', [1000], [
+new BenchmarkSuite('ArrayDestructuring-ES6', [1000], [
   new Benchmark('ES6', false, false, 0, ES6),
 ]);
 
@@ -20,10 +20,9 @@ new BenchmarkSuite('ObjectLiterals-ES6', [1000], [
 
 function ES5() {
   "use strict";
-  var name = 'foo';
-  var ret = {};
-  ret[name] = 'bar';
-  return ret;
+  var data = [1, 2, 3];
+  var c = data[0];
+  return c;
 }
 
 
@@ -33,9 +32,7 @@ function ES5() {
 
 function ES6() {
   "use strict";
-  var name = 'foo';
-  var ret = {
-    [name]: 'bar',
-  };
-  return ret;
+  var data = [1, 2, 3];
+  var [c] = data;
+  return c;
 }