Ship ES6 computed property names

src/flag-definitions.h

Index: src/flag-definitions.h
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index 8a3d43770fe0f7e9b7ea7eadd6f5fd59bc5e3d5d..aa311411c9282d3bac6635d9e9f942bf7c69184b 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -196,13 +196,13 @@ DEFINE_IMPLICATION(es_staging, harmony)
 
 // Features that are complete (but still behind --harmony/es-staging flag).
 #define HARMONY_STAGED(V)                                               \
-  V(harmony_computed_property_names, "harmony computed property names") \
   V(harmony_tostring, "harmony toString")                               \
   V(harmony_unicode, "harmony unicode escapes")
 
 // Features that are shipping (turned on by default, but internal flag remains).
 #define HARMONY_SHIPPING(V)                                                \
   V(harmony_classes, "harmony classes (implies object literal extension)") \
+  V(harmony_computed_property_names, "harmony computed property names")    \
   V(harmony_object_literals, "harmony object literal extensions")
 
 // Once a shipping feature has proved stable in the wild, it will be dropped