[deoptimizer] Teach the Deoptimizer about bound functions.

test/mjsunit/regress/regress-crbug-729573.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.
+
+// Flags: --allow-natives-syntax
+
+(function() {
+  function foo() {
+    var a = foo.bind(this);
+    %DeoptimizeNow();
+    if (!a) return a;

[Jarin, 2017/06/07 05:42:46]

Please, write a test that calls the materialized function, so that it makes sure
that the object is materialized correctly.

[Benedikt Meurer, 2017/06/07 05:55:50]

Done.

+    return 0;
+  }
+
+  assertEquals(0, foo());
+  assertEquals(0, foo());
+  %OptimizeFunctionOnNextCall(foo);
+  assertEquals(0, foo());
+})();
+
+(function() {
+  "use strict";
+
+  function foo() {
+    var a = foo.bind(this);
+    %DeoptimizeNow();
+    if (!a) return a;
+    return 0;
+  }
+
+  assertEquals(0, foo());
+  assertEquals(0, foo());
+  %OptimizeFunctionOnNextCall(foo);
+  assertEquals(0, foo());
+})();
+
+(function() {
+  function foo() {
+    var a = foo.bind(this);
+    %DeoptimizeNow();
+    if (!a) return a;
+    return 0;
+  }
+  foo.prototype = {custom: "prototype"};
+
+  assertEquals(0, foo());
+  assertEquals(0, foo());
+  %OptimizeFunctionOnNextCall(foo);
+  assertEquals(0, foo());
+})();
+
+(function() {
+  "use strict";
+
+  function foo() {
+    var a = foo.bind(this);
+    %DeoptimizeNow();
+    if (!a) return a;
+    return 0;
+  }
+  foo.prototype = {custom: "prototype"};
+
+  assertEquals(0, foo());
+  assertEquals(0, foo());
+  %OptimizeFunctionOnNextCall(foo);
+  assertEquals(0, foo());
+})();