Maintain a FixedArray for the optimized code map.

src/runtime/runtime-function.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/runtime/runtime-utils.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/compiler.h"
 #include "src/deoptimizer.h"
@@ skipping 373 matching lines @@
 RUNTIME_FUNCTION(Runtime_FunctionBindArguments) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 4);
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, bound_function, 0);
   CONVERT_ARG_HANDLE_CHECKED(JSReceiver, bindee, 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, this_object, 2);
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(new_length, 3);
 
   // TODO(lrn): Create bound function in C++ code from premade shared info.
   bound_function->shared()->set_bound(true);
-  bound_function->shared()->set_optimized_code_map(Smi::FromInt(0));
+  bound_function->shared()->set_optimized_code_map(
+      isolate->heap()->cleared_optimized_code_map());
   bound_function->shared()->set_inferred_name(isolate->heap()->empty_string());
   // Get all arguments of calling function (Function.prototype.bind).
   int argc = 0;
   base::SmartArrayPointer<Handle<Object>> arguments =
       Runtime::GetCallerArguments(isolate, 0, &argc);
   // Don't count the this-arg.
   if (argc > 0) {
     RUNTIME_ASSERT(arguments[0].is_identical_to(this_object));
     argc--;
   } else {
@@ skipping 203 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_ThrowStrongModeTooFewArguments) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 0);
   THROW_NEW_ERROR_RETURN_FAILURE(isolate,
                                  NewTypeError(MessageTemplate::kStrongArity));
 }
 
 }  // namespace internal
 }  // namespace v8