Track computed literal properties.

src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index 9c55ad7e719265dc535a6d5b3c7990c7a027994b..247e218067315c806255e4df35f0d5e3ad65fa8f 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -3998,7 +3998,8 @@ void Parser::BuildObjectLiteralConstantProperties(
 
     // Ensure objects with doubles are always treated as nested objects.
     // TODO(verwaest): Remove once we can store them inline.
-    if (FLAG_track_double_fields && value->IsNumber()) {
+    if (FLAG_track_double_fields &&
+        (value->IsNumber() || value->IsUndefined())) {

[danno, 2013/06/06 07:54:19]

Might want to extend the comment above, i.e. doubles and unititalized fields.
BTW, is this sufficient? Don't you have to also check the representation of the
property in this case.

[Toon Verwaest, 2013/06/06 10:31:41]

Done.

       *may_store_doubles = true;
     }