Refactor the check for generating inline constructors...

src/heap.cc

Index: src/heap.cc
===================================================================
--- src/heap.cc	(revision 3879)
+++ src/heap.cc	(working copy)
@@ -2389,10 +2389,7 @@
   // the inline_new flag so we only change the map if we generate a
   // specialized construct stub.
   ASSERT(in_object_properties <= Map::kMaxPreAllocatedPropertyFields);
-  if (FLAG_inline_new
-      && fun->shared()->has_only_simple_this_property_assignments()
-      && fun->shared()->this_property_assignments_count() > 0
-      && !JSObject::cast(prototype)->HasSetter()) {
+  if (fun->shared()->CanGenerateInlineConstructor(prototype)) {
     int count = fun->shared()->this_property_assignments_count();
     if (count > in_object_properties) {
       count = in_object_properties;