[Test] Add a perf test for TypedArray construct by typed array.

BUG=v8:5977

Change-Id: Ic756fd44a945f98d51c0914dcc6c3b82111d170d
Reviewed-on: https://chromium-review.googlesource.com/456419Reviewed-by: Franziska Hinkelmann <franzih@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43978}

test/js-perf-test/JSTests.json

@@ -321,6 +321,18 @@
           "main": "run.js",
           "test_flags": ["construct-arraylike"]
         },
+        {
+          "name": "ConstructByTypedArray",
+          "main": "run.js",
+          "test_flags": ["construct-typedarray"]
+        },
+        {
+          "name": "ConstructByTypedArray--noTF",
+          "flags": ["--no-turbo"],
+          "results_regexp": "^TypedArrays\\-ConstructByTypedArray\\(Score\\): (.+)$",
+          "main": "run.js",
+          "test_flags": ["construct-typedarray"]
+        },
         {
           "name": "Sort",
           "main": "run.js",

test/js-perf-test/TypedArrays/construct-typedarray.js

+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+new BenchmarkSuite('ConstructByTypedArray', [1000], [
+  new Benchmark('ConstructByTypedArray', false, false, 0, constructor),
+]);
+
+var length = 1024;
+var arr = new Uint8Array(length);
+for (var i = 0; i < length; i++) {
+  arr[i] = i;
+}
+
+function constructor() {
+  new Float64Array(arr);
+}