Implement micro-benchmark for Proxies constructor

Bug: 
Change-Id: I95285260b0848c4c876498bfef0b13ffbe6855ad
Reviewed-on: https://chromium-review.googlesource.com/558297Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Maya Lekova <mslekova@google.com>
Cr-Commit-Position: refs/heads/master@{#46415}

test/js-perf-test/JSTests.json

@@ -8,6 +8,19 @@
   "total": true,
   "resources": ["base.js"],
   "tests": [
+    {
+      "name": "Proxies",
+      "path": ["Proxies"],
+      "main": "run.js",
+      "resources": ["proxies.js"],
+      "results_regexp": "^%s\\-Proxies\\(Score\\): (.+)$",
+      "tests": [
+        {"name": "ProxyConstructorWithArrowFunc"},
+        {"name": "ProxyConstructorWithClass"},
+        {"name": "ProxyConstructorWithObject"},
+        {"name": "ProxyConstructorWithProxy"}
+      ]
+    },
     {
       "name": "AsyncAwait",
       "path": ["AsyncAwait"],

test/js-perf-test/Proxies/proxies.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.
+
+function newBenchmark(name, handlers) {
+  new BenchmarkSuite(name, [1000], [
+    new Benchmark(name, false, false, 0,
+                  handlers.run, handlers.setup, handlers.teardown)
+  ]);
+}
+
+// ----------------------------------------------------------------------------
+
+var result;
+var foo = () => {}
+
+newBenchmark("ProxyConstructorWithArrowFunc", {
+  setup() { },
+  run() {
+    var proxy = new Proxy(foo, {});
+    result = proxy;
+  },
+  teardown() {
+    return (typeof result == 'function');
+  }
+});
+
+// ----------------------------------------------------------------------------
+
+class Class {};
+
+newBenchmark("ProxyConstructorWithClass", {
+  setup() { },
+  run() {
+    var proxy = new Proxy(Class, {});
+    result = proxy;
+  },
+  teardown() {
+    return (typeof result == 'function');
+  }
+});
+
+// ----------------------------------------------------------------------------
+
+var obj = {};
+
+newBenchmark("ProxyConstructorWithObject", {
+  setup() { },
+  run() {
+    var proxy = new Proxy(obj, {});
+    result = proxy;
+  },
+  teardown() {
+    return (typeof result == 'function');
+  }
+});
+
+// ----------------------------------------------------------------------------
+
+var p = new Proxy({}, {});
+
+newBenchmark("ProxyConstructorWithProxy", {
+  setup() { },
+  run() {
+    var proxy = new Proxy(p, {});
+    result = proxy;
+  },
+  teardown() {
+    return (typeof result == 'function');
+  }
+});

test/js-perf-test/Proxies/run.js

+// Copyright 2015 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.
+
+
+load('../base.js');
+load('proxies.js');
+
+var success = true;
+
+function PrintResult(name, result) {
+  print(name + '-Proxies(Score): ' + result);
+}
+
+
+function PrintError(name, error) {
+  PrintResult(name, error);
+  success = false;
+}
+
+
+BenchmarkSuite.config.doWarmup = undefined;
+BenchmarkSuite.config.doDeterministic = undefined;
+
+BenchmarkSuite.RunSuites({ NotifyResult: PrintResult,
+                           NotifyError: PrintError });