[turbofan] Handle inlining of API getters/setters.

src/compiler/access-info.cc

 // 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.
 
 #include <ostream>
 
 #include "src/accessors.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/access-info.h"
 #include "src/compiler/type-cache.h"
 #include "src/field-index-inl.h"
 #include "src/field-type.h"
+#include "src/ic/call-optimization.h"
 #include "src/objects-inl.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 namespace {
 
 bool CanInlineElementAccess(Handle<Map> map) {
   if (!map->IsJSObjectMap()) return false;
@@ skipping 313 matching lines @@
         }
         case ACCESSOR_CONSTANT: {
           Handle<Object> accessors(descriptors->GetValue(number), isolate());
           if (!accessors->IsAccessorPair()) return false;
           Handle<Object> accessor(
               access_mode == AccessMode::kLoad
                   ? Handle<AccessorPair>::cast(accessors)->getter()
                   : Handle<AccessorPair>::cast(accessors)->setter(),
               isolate());
           if (!accessor->IsJSFunction()) {
-            // TODO(turbofan): Add support for API accessors.
-            return false;
+            CallOptimization optimization(accessor);
+            if (!optimization.is_simple_api_call()) {
+              return false;
+            }
+            if (optimization.api_call_info()->fast_handler()->IsCode()) {
+              return false;
+            }
           }
           *access_info = PropertyAccessInfo::AccessorConstant(
               MapList{receiver_map}, accessor, holder);
           return true;
         }
         case ACCESSOR: {
           // TODO(turbofan): Add support for general accessors?
           return false;
         }
       }
@@ skipping 169 matching lines @@
   }
   return false;
 }
 
 
 Factory* AccessInfoFactory::factory() const { return isolate()->factory(); }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8