Maintain a FixedArray for the optimized code map.

src/runtime/runtime-function.cc

Index: src/runtime/runtime-function.cc
diff --git a/src/runtime/runtime-function.cc b/src/runtime/runtime-function.cc
index 77428eeb892af6b0d84599488207279343152d10..d6a4f34dd086b156e458cca054c6eec32ad24b8a 100644
--- a/src/runtime/runtime-function.cc
+++ b/src/runtime/runtime-function.cc
@@ -392,7 +392,8 @@ RUNTIME_FUNCTION(Runtime_FunctionBindArguments) {
 
   // 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;