Properly blacklist ES6 for-of statement for TurboFan.

src/ast.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/ast.h"
 
 #include <cmath>  // For isfinite.
 #include "src/builtins.h"
 #include "src/code-stubs.h"
 #include "src/contexts.h"
@@ skipping 1064 matching lines @@
 
 // We currently do not optimize any modules.
 DONT_OPTIMIZE_NODE(ModuleDeclaration)
 DONT_OPTIMIZE_NODE(ImportDeclaration)
 DONT_OPTIMIZE_NODE(ExportDeclaration)
 DONT_OPTIMIZE_NODE(ModuleVariable)
 DONT_OPTIMIZE_NODE(ModulePath)
 DONT_OPTIMIZE_NODE(ModuleUrl)
 DONT_OPTIMIZE_NODE(ModuleStatement)
 DONT_OPTIMIZE_NODE(WithStatement)
+DONT_OPTIMIZE_NODE(ForOfStatement)
 DONT_OPTIMIZE_NODE(TryCatchStatement)
 DONT_OPTIMIZE_NODE(TryFinallyStatement)
 DONT_OPTIMIZE_NODE(DebuggerStatement)
 DONT_OPTIMIZE_NODE(NativeFunctionLiteral)
 DONT_OPTIMIZE_NODE(SuperReference)
 
 DONT_OPTIMIZE_NODE_WITH_FEEDBACK_SLOTS(Yield)
 
 DONT_SELFOPTIMIZE_NODE(DoWhileStatement)
 DONT_SELFOPTIMIZE_NODE(WhileStatement)
 DONT_SELFOPTIMIZE_NODE(ForStatement)
-DONT_SELFOPTIMIZE_NODE(ForOfStatement)
 
 DONT_SELFOPTIMIZE_NODE_WITH_FEEDBACK_SLOTS(ForInStatement)
 
 DONT_CACHE_NODE(ModuleLiteral)
 
 
 void AstConstructionVisitor::VisitCallRuntime(CallRuntime* node) {
   increase_node_count();
   add_slot_node(node);
   if (node->is_jsruntime()) {
@@ skipping 19 matching lines @@
     SNPrintF(buffer, "%d", Smi::cast(*value())->value());
     str = arr;
   } else {
     str = DoubleToCString(value()->Number(), buffer);
   }
   return isolate_->factory()->NewStringFromAsciiChecked(str);
 }
 
 
 } }  // namespace v8::internal