[es6] parse arrow ConciseBody with accept_IN flag

src/objects.cc

 // Copyright 2013 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/objects.h"
 
 #include <cmath>
 #include <iomanip>
 #include <sstream>
 
@@ skipping 12142 matching lines @@
   shared_info->set_ast_node_count(lit->ast_node_count());
   shared_info->set_is_function(lit->is_function());
   if (lit->dont_optimize_reason() != kNoReason) {
     shared_info->DisableOptimization(lit->dont_optimize_reason());
   }
   shared_info->set_dont_crankshaft(lit->flags() &
                                    AstProperties::kDontCrankshaft);
   shared_info->set_kind(lit->kind());
   shared_info->set_needs_home_object(lit->scope()->NeedsHomeObject());
   shared_info->set_asm_function(lit->scope()->asm_function());
+  shared_info->set_accept_IN(lit->accept_IN());
 }
 
 
 bool SharedFunctionInfo::VerifyBailoutId(BailoutId id) {
   DCHECK(!id.IsNone());
   Code* unoptimized = code();
   DeoptimizationOutputData* data =
       DeoptimizationOutputData::cast(unoptimized->deoptimization_data());
   unsigned ignore = Deoptimizer::GetOutputInfo(data, id, this);
   USE(ignore);
@@ skipping 5489 matching lines @@
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 
 }  // namespace internal
 }  // namespace v8