[turbofan] Prepare mechanism to enable TF on language subset.

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 <iomanip>
 #include <sstream>
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 10851 matching lines @@
   shared_info->set_allows_lazy_compilation_without_context(
       lit->AllowsLazyCompilationWithoutContext());
   shared_info->set_language_mode(lit->language_mode());
   shared_info->set_uses_arguments(lit->scope()->arguments() != NULL);
   shared_info->set_has_duplicate_parameters(lit->has_duplicate_parameters());
   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()->Contains(AstPropertiesFlag::kDontCrankshaft));
   shared_info->set_dont_cache(
       lit->flags()->Contains(AstPropertiesFlag::kDontCache));
   shared_info->set_kind(lit->kind());
   shared_info->set_uses_super_property(lit->uses_super_property());
   shared_info->set_asm_function(lit->scope()->asm_function());
 }
 
 
 bool SharedFunctionInfo::VerifyBailoutId(BailoutId id) {
   DCHECK(!id.IsNone());
@@ skipping 6414 matching lines @@
 void PropertyCell::SetValueWithInvalidation(Handle<PropertyCell> cell,
                                             Handle<Object> new_value) {
   if (cell->value() != *new_value) {
     cell->set_value(*new_value);
     Isolate* isolate = cell->GetIsolate();
     cell->dependent_code()->DeoptimizeDependentCodeGroup(
         isolate, DependentCode::kPropertyCellChangedGroup);
   }
 }
 } }  // namespace v8::internal