[api] Its sufficient for the holder in api call to be a JSReceier

Bug: chromium:1158124
Change-Id: Ic23f4b2ffb9436771afcc0090f2179b48851c39d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2596336Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71829}

src/api/api-arguments-inl.h

@@ -57,8 +57,8 @@ inline Object PropertyCallbackArguments::receiver() {
   return *slot_at(T::kThisIndex);
 }
 
-inline JSObject FunctionCallbackArguments::holder() {
-  return JSObject::cast(*slot_at(T::kHolderIndex));
+inline JSReceiver FunctionCallbackArguments::holder() {
+  return JSReceiver::cast(*slot_at(T::kHolderIndex));
 }
 
 #define FOR_EACH_CALLBACK(F)                        \

src/api/api-arguments.h

@@ -177,7 +177,7 @@ class FunctionCallbackArguments
   inline Handle<Object> Call(CallHandlerInfo handler);
 
  private:
-  inline JSObject holder();
+  inline JSReceiver holder();
 
   internal::Address* argv_;
   int argc_;

src/logging/log.cc

@@ -1136,7 +1136,7 @@ void Logger::ApiIndexedPropertyAccess(const char* tag, JSObject holder,
   msg.WriteToLogFile();
 }
 
-void Logger::ApiObjectAccess(const char* tag, JSObject object) {
+void Logger::ApiObjectAccess(const char* tag, JSReceiver object) {
   if (!FLAG_log_api) return;
   MSG_BUILDER();
   msg << "api" << kNext << tag << kNext << object.class_name();

src/logging/log.h

@@ -182,7 +182,7 @@ class Logger : public CodeEventListener {
   void ApiNamedPropertyAccess(const char* tag, JSObject holder, Object name);
   void ApiIndexedPropertyAccess(const char* tag, JSObject holder,
                                 uint32_t index);
-  void ApiObjectAccess(const char* tag, JSObject obj);
+  void ApiObjectAccess(const char* tag, JSReceiver obj);
   void ApiEntryCall(const char* name);
 
   // ==== Events logged by --log-code. ====

test/mjsunit/regress/regress-1158124.js

+// Copyright 2020 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: --log-code
+
+o = new Proxy(this, {});
+o.printErr();