Load setter from map descriptor instead of embedding it in handler.

src/ic/ic.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/base/bits.h"
@@ skipping 1714 matching lines @@
           break;
         }
         Handle<JSFunction> function = Handle<JSFunction>::cast(setter);
         CallOptimization call_optimization(function);
         NamedStoreHandlerCompiler compiler(isolate(), receiver_type(), holder);
         if (call_optimization.is_simple_api_call() &&
             call_optimization.IsCompatibleReceiver(receiver, holder)) {
           return compiler.CompileStoreCallback(receiver, lookup->name(),
                                                call_optimization);
         }
+        int expected_arguments = function->shared()->formal_parameter_count();
         return compiler.CompileStoreViaSetter(receiver, lookup->name(),
-                                              Handle<JSFunction>::cast(setter));
+                                              lookup->GetAccessorIndex(),
+                                              expected_arguments);
       }
       break;
     }
 
     case LookupIterator::DATA: {
       if (lookup->is_dictionary_holder()) {
         if (holder->IsGlobalObject()) {
           Handle<PropertyCell> cell = lookup->GetPropertyCell();
           Handle<HeapType> union_type = PropertyCell::UpdatedType(cell, value);
           StoreGlobalStub stub(isolate(), union_type->IsConstant(),
@@ skipping 1232 matching lines @@
 static const Address IC_utilities[] = {
 #define ADDR(name) FUNCTION_ADDR(name),
     IC_UTIL_LIST(ADDR) NULL
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) { return IC_utilities[id]; }
 }
 }  // namespace v8::internal