[intl] Ship Ext. TimeZone option

Stage 3 proposal
R4T: https://groups.google.com/a/chromium.org/g/blink-dev/c/e4Ict1TT9FE/m/aq69ne3rBAAJ
I2S: https://groups.google.com/a/chromium.org/g/blink-dev/c/-6bANPdHR7c/m/netwFVfEAQAJ
Spec: https://tc39.es/proposal-intl-extend-timezonename/
https://chromestatus.com/guide/edit/4506375298220032
LGTM1:bratell.d@gmail.com
LGTM2:chrishtr@chromium.org
LGTM3:tkent@chromium.org

Bug: v8:11661
Change-Id: I1e92ac473dd42f6238feebe9ac8dad6be96ac210
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3088518
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#76332}

src/flags/flag-definitions.h

@@ -307,9 +307,7 @@ DEFINE_BOOL(harmony_shipping, true, "enable all shipped harmony features")
 #define HARMONY_STAGED(V)                                 \
   HARMONY_STAGED_BASE(V)                                  \
   V(harmony_intl_best_fit_matcher, "Intl BestFitMatcher") \
-  V(harmony_intl_locale_info, "Intl locale info")         \
-  V(harmony_intl_more_timezone,                           \
-    "Extend Intl.DateTimeFormat timeZoneName Option")
+  V(harmony_intl_locale_info, "Intl locale info")
 #else
 #define HARMONY_STAGED(V) HARMONY_STAGED_BASE(V)
 #endif
@@ -328,9 +326,11 @@ DEFINE_BOOL(harmony_shipping, true, "enable all shipped harmony features")
 #ifdef V8_INTL_SUPPORT
 #define HARMONY_SHIPPING(V)                               \
   HARMONY_SHIPPING_BASE(V)                                \
-  V(harmony_intl_displaynames_v2, "Intl.DisplayNames v2") \
   V(harmony_intl_dateformat_day_period,                   \
-    "Add dayPeriod option to DateTimeFormat")
+    "Add dayPeriod option to DateTimeFormat")             \
+  V(harmony_intl_displaynames_v2, "Intl.DisplayNames v2") \
+  V(harmony_intl_more_timezone,                           \
+    "Extend Intl.DateTimeFormat timeZoneName Option")
 #else
 #define HARMONY_SHIPPING(V) HARMONY_SHIPPING_BASE(V)
 #endif