[es6] Fix invalid ToString in implementation of ToName.

src/full-codegen/arm/full-codegen-arm.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.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/compiler.h"
@@ skipping 3786 matching lines @@
 
   // Load the argument into r0 and convert it.
   VisitForAccumulatorValue(args->at(0));
 
   Label convert, done_convert;
   __ JumpIfSmi(r0, &convert);
   STATIC_ASSERT(FIRST_NAME_TYPE == FIRST_TYPE);
   __ CompareObjectType(r0, r1, r1, LAST_NAME_TYPE);
   __ b(ls, &done_convert);
   __ bind(&convert);
-  ToStringStub stub(isolate());
-  __ CallStub(&stub);
+  __ Push(r0);
+  __ CallRuntime(Runtime::kToName, 1);
   __ bind(&done_convert);
   context()->Plug(r0);
 }
 
 
 void FullCodeGenerator::EmitToObject(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(1, args->length());
 
   // Load the argument into r0 and convert it.
@@ skipping 1434 matching lines @@
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM