Partially revert "Optimize function across closures."

src/factory.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 "src/factory.h"
 
 #include "src/allocation-site-scopes.h"
 #include "src/base/bits.h"
 #include "src/conversions.h"
 #include "src/isolate-inl.h"
@@ skipping 1401 matching lines @@
     FixedArray* literals = info->GetLiteralsFromOptimizedCodeMap(index);
     if (literals != NULL) result->set_literals(literals);
     Code* code = info->GetCodeFromOptimizedCodeMap(index);
     DCHECK(!code->marked_for_deoptimization());
     result->ReplaceCode(code);
     return result;
   }
 
   if (FLAG_always_opt && ShouldOptimizeNewClosure(isolate(), info)) {
     result->MarkForOptimization();
-  } else if (info->optimize_next_closure() &&
-             ShouldOptimizeNewClosure(isolate(), info)) {
-    result->AttemptConcurrentOptimization();
   }
   return result;
 }
 
 
 Handle<ScopeInfo> Factory::NewScopeInfo(int length) {
   Handle<FixedArray> array = NewFixedArray(length, TENURED);
   array->set_map_no_write_barrier(*scope_info_map());
   Handle<ScopeInfo> scope_info = Handle<ScopeInfo>::cast(array);
   return scope_info;
@@ skipping 1086 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal