Strict mode poison pills for function.caller and function.arguments

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 9349dc5abe87f89539a651b4e84c45dd9f684e1e..fb583460997334c4dca1cd16013ff51cdc63e278 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -8045,11 +8045,14 @@ static MaybeObject* Runtime_SetNewFunctionAttributes(Arguments args) {
   HandleScope scope;
   ASSERT(args.length() == 1);
   CONVERT_ARG_CHECKED(JSFunction, func, 0);
-  ASSERT(func->map()->instance_type() ==
-         Top::function_instance_map()->instance_type());
-  ASSERT(func->map()->instance_size() ==
-         Top::function_instance_map()->instance_size());
-  func->set_map(*Top::function_instance_map());
+
+  Handle<Map> map = func->shared()->strict_mode()
+                        ? Top::strict_mode_function_instance_map()
+                        : Top::function_instance_map();
+
+  ASSERT(func->map()->instance_type() == map->instance_type());
+  ASSERT(func->map()->instance_size() == map->instance_size());
+  func->set_map(*map);
   return *func;
 }