Properly blacklist ES6 for-of statement for TurboFan.

src/compiler.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/compiler.h"
 
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 383 matching lines @@
     }
   }
 
   DCHECK(info()->shared_info()->has_deoptimization_support());
 
   // Check the whitelist for TurboFan.
   if (info()->closure()->PassesFilter(FLAG_turbo_filter) &&
       // TODO(turbofan): Make try-catch work and remove this bailout.
       info()->function()->dont_optimize_reason() != kTryCatchStatement &&
       info()->function()->dont_optimize_reason() != kTryFinallyStatement &&
+      // TODO(turbofan): Make ES6 for-of work and remove this bailout.
+      info()->function()->dont_optimize_reason() != kForOfStatement &&
       // TODO(turbofan): Make OSR work and remove this bailout.
       !info()->is_osr()) {
     compiler::Pipeline pipeline(info());
     pipeline.GenerateCode();
     if (!info()->code().is_null()) {
       if (FLAG_turbo_deoptimization) {
         info()->context()->native_context()->AddOptimizedCode(*info()->code());
       }
       return SetLastStatus(SUCCEEDED);
     }
@@ skipping 969 matching lines @@
   AllowHandleDereference allow_deref;
   bool tracing_on = info()->IsStub()
       ? FLAG_trace_hydrogen_stubs
       : (FLAG_trace_hydrogen &&
          info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter));
   return (tracing_on &&
       base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
 }
 
 } }  // namespace v8::internal