[proxies] Better print for proxies in d8

src/js/v8natives.js

 // Copyright 2012 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(global, utils) {
 
 %CheckIsBootstrapping();
 
 // ----------------------------------------------------------------------------
 // Imports
@@ skipping 468 matching lines @@
 function CallTrap2(handler, name, defaultTrap, x, y) {
   return %_Call(GetTrap(handler, name, defaultTrap), handler, x, y);
 }
 
 
 // ES5 section 8.12.1.
 // TODO(jkummerow): Deprecated. Migrate all callers to
 // ObjectGetOwnPropertyDescriptor and delete this.
 function GetOwnPropertyJS(obj, v) {
   var p = TO_NAME(v);
-  if (%_IsJSProxy(obj)) {
+  if (IS_PROXY(obj)) {
     // TODO(rossberg): adjust once there is a story for symbols vs proxies.
     if (IS_SYMBOL(v)) return UNDEFINED;
 
-    var handler = %GetHandler(obj);
+    var handler = %JSProxyGetHandler(obj);
     var descriptor = CallTrap1(
                          handler, "getOwnPropertyDescriptor", UNDEFINED, p);
     if (IS_UNDEFINED(descriptor)) return descriptor;
     var desc = ToCompletePropertyDescriptor(descriptor);
     if (!desc.isConfigurable()) {
       throw MakeTypeError(kIllegalInvocation);
     }
     return desc;
   }
 
@@ skipping 13 matching lines @@
   if (IS_CALLABLE(func)) return func;
   throw MakeTypeError(kCalledNonCallable, typeof func);
 }
 
 
 // Harmony proxies.
 function DefineProxyProperty(obj, p, attributes, should_throw) {
   // TODO(rossberg): adjust once there is a story for symbols vs proxies.
   if (IS_SYMBOL(p)) return false;
 
-  var handler = %GetHandler(obj);
+  var handler = %JSProxyGetHandler(obj);
   var result = CallTrap2(handler, "defineProperty", UNDEFINED, p, attributes);
   if (!result) {
     if (should_throw) {
       throw MakeTypeError(kIllegalInvocation);
     } else {
       return false;
     }
   }
   return true;
 }
@@ skipping 202 matching lines @@
     }
   }
 
   // Step 5 - Fallback to default implementation.
   return DefineObjectProperty(obj, p, desc, should_throw);
 }
 
 
 // ES5 section 8.12.9, ES5 section 15.4.5.1 and Harmony proxies.
 function DefineOwnProperty(obj, p, desc, should_throw) {
-  if (%_IsJSProxy(obj)) {
+  if (IS_PROXY(obj)) {
     // TODO(rossberg): adjust once there is a story for symbols vs proxies.
     if (IS_SYMBOL(p)) return false;
 
     var attributes = FromGenericPropertyDescriptor(desc);
     return DefineProxyProperty(obj, p, attributes, should_throw);
   } else if (IS_ARRAY(obj)) {
     return DefineArrayProperty(obj, p, desc, should_throw);
   } else {
     return DefineObjectProperty(obj, p, desc, should_throw);
   }
@@ skipping 625 matching lines @@
   to.ObjectIsFrozen = ObjectIsFrozen;
   to.ObjectIsSealed = ObjectIsSealed;
   to.ObjectKeys = ObjectKeys;
 });
 
 %InstallToContext([
   "object_value_of", ObjectValueOf,
 ]);
 
 })