Don't use fast literal if the boilerplate map is still deprecated.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 6bb9fe218bc2bbc7be2aa2e9156c01b44e58d8e5..906e8978e2a7e766aba8f69403c8e8664754c7fe 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -6692,6 +6692,8 @@ static bool IsFastLiteral(Handle<JSObject> boilerplate,
                           int* max_properties,
                           int* data_size,
                           int* pointer_size) {
+  if (boilerplate->map()->is_deprecated()) return false;

[mvstanton, 2013/05/23 09:47:39]

Per our discussion a comment here with the rationale for giving up quite easily
when you could also recover with a non-map-creating migration. It's a good
rationale.

+
   ASSERT(max_depth >= 0 && *max_properties >= 0);
   if (max_depth == 0) return false;