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 16e6149e7c8770411aa870b02fb2c1f562832a26..18931ddd26b9eea4c6084d19190cbcf04c50761a 100644
--- a/src/runtime/runtime-function.cc
+++ b/src/runtime/runtime-function.cc
@@ -391,7 +391,8 @@ 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;