Store OSR'd optimized code on the native context.

src/contexts-inl.h

Index: src/contexts-inl.h
diff --git a/src/contexts-inl.h b/src/contexts-inl.h
index ce2c97be753f774d04bfa22cbd47707d6ded1b60..f2eb5462ac950d0e0485f629eb8e3d47bcbcd14c 100644
--- a/src/contexts-inl.h
+++ b/src/contexts-inl.h
@@ -124,6 +124,9 @@ bool Context::IsScriptContext() {
   return map == map->GetHeap()->script_context_map();
 }
 
+bool Context::OptimizedCodeMapIsCleared() {
+  return osrd_function_table() == GetHeap()->empty_fixed_array();
+}
 
 bool Context::HasSameSecurityTokenAs(Context* that) {
   return this->native_context()->security_token() ==