Convert function.caller to API-style accessor.

src/bootstrapper.cc

 // Copyright 2014 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.
 
 #include "bootstrapper.h"
 
 #include "accessors.h"
 #include "isolate-inl.h"
 #include "natives.h"
 #include "snapshot.h"
@@ skipping 370 matching lines @@
   function->shared()->set_native(true);
   return function;
 }
 
 
 void Genesis::SetFunctionInstanceDescriptor(
     Handle<Map> map, PrototypePropertyMode prototypeMode) {
   int size = (prototypeMode == DONT_ADD_PROTOTYPE) ? 4 : 5;
   Map::EnsureDescriptorSlack(map, size);
 
-  Handle<Foreign> caller(factory()->NewForeign(&Accessors::FunctionCaller));
   PropertyAttributes attribs = static_cast<PropertyAttributes>(
       DONT_ENUM | DONT_DELETE | READ_ONLY);
 
   Handle<AccessorInfo> length =
       Accessors::FunctionLengthInfo(isolate(), attribs);
   {  // Add length.
     CallbacksDescriptor d(Handle<Name>(Name::cast(length->name())),
                           length, attribs);
     map->AppendDescriptor(&d);
   }
   Handle<AccessorInfo> name =
       Accessors::FunctionNameInfo(isolate(), attribs);
   {  // Add name.
     CallbacksDescriptor d(Handle<Name>(Name::cast(name->name())),
                           name, attribs);
     map->AppendDescriptor(&d);
   }
   Handle<AccessorInfo> args =
       Accessors::FunctionArgumentsInfo(isolate(), attribs);
   {  // Add arguments.
     CallbacksDescriptor d(Handle<Name>(Name::cast(args->name())),
                           args, attribs);
     map->AppendDescriptor(&d);
   }
+  Handle<AccessorInfo> caller =
+      Accessors::FunctionCallerInfo(isolate(), attribs);
   {  // Add caller.
-    CallbacksDescriptor d(factory()->caller_string(), caller, attribs);
+    CallbacksDescriptor d(Handle<Name>(Name::cast(caller->name())),
+                          caller, attribs);
     map->AppendDescriptor(&d);
   }
   if (prototypeMode != DONT_ADD_PROTOTYPE) {
     if (prototypeMode == ADD_WRITEABLE_PROTOTYPE) {
       attribs = static_cast<PropertyAttributes>(attribs & ~READ_ONLY);
     }
     Handle<AccessorInfo> prototype =
         Accessors::FunctionPrototypeInfo(isolate(), attribs);
     CallbacksDescriptor d(Handle<Name>(Name::cast(prototype->name())),
                           prototype, attribs);
@@ skipping 2258 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   ASSERT(!IsActive());
 }
 
 } }  // namespace v8::internal