Ship for-in initializer deprecation

src/flag-definitions.h

Index: src/flag-definitions.h
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index 1888d24d0fa9b9977f55a48651dd72dab38f13ec..51008d8932d5c9e22a445a6f9141fb649b92fd19 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -205,7 +205,6 @@ DEFINE_IMPLICATION(es_staging, move_object_start)
 #define HARMONY_STAGED(V)                                                    \
   V(harmony_regexp_lookbehind, "harmony regexp lookbehind")                  \
   V(harmony_tailcalls, "harmony tail calls")                                 \
-  V(harmony_for_in, "harmony for-in syntax")                                 \
   V(harmony_object_values_entries, "harmony Object.values / Object.entries") \
   V(harmony_object_own_property_descriptors,                                 \
     "harmony Object.getOwnPropertyDescriptors()")                            \
@@ -216,6 +215,7 @@ DEFINE_IMPLICATION(es_staging, move_object_start)
   V(harmony_array_prototype_values, "harmony Array.prototype.values") \
   V(harmony_function_name, "harmony Function name inference")         \
   V(harmony_instanceof, "harmony instanceof support")                 \
+  V(harmony_for_in, "harmony for-in syntax")                          \
   V(harmony_iterator_close, "harmony iterator finalization")          \
   V(harmony_unicode_regexps, "harmony unicode regexps")               \
   V(harmony_regexp_exec, "harmony RegExp exec override behavior")     \