[Intl] Ship Intl.DateTimeFormat#formatRange

Design Doc: https://goo.gl/PGUQ1d
Chrome Status: https://www.chromestatus.com/feature/5077134515109888
I2S: https://groups.google.com/a/chromium.org/d/msg/blink-dev/Nh-jMn8L8fQ/GQN6wQQVBQAJ
I2I: https://groups.google.com/a/chromium.org/d/msg/blink-dev/WTAjjcXaraA/ZypbHTlEAQAJ

Bug: v8:7729
Change-Id: Ib3277c6a01546fd56418615087df497058edb8ae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1604068
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61580}

src/flag-definitions.h

@@ -227,7 +227,6 @@ DEFINE_IMPLICATION(harmony_import_meta, harmony_dynamic_import)
 #ifdef V8_INTL_SUPPORT
 #define HARMONY_STAGED(V)                                         \
   HARMONY_STAGED_BASE(V)                                          \
-  V(harmony_intl_date_format_range, "DateTimeFormat formatRange") \
   V(harmony_intl_segmenter, "Intl.Segmenter")
 #else
 #define HARMONY_STAGED(V) HARMONY_STAGED_BASE(V)
@@ -248,9 +247,10 @@ DEFINE_IMPLICATION(harmony_import_meta, harmony_dynamic_import)
   V(harmony_promise_all_settled, "harmony Promise.allSettled")
 
 #ifdef V8_INTL_SUPPORT
-#define HARMONY_SHIPPING(V)                                 \
-  HARMONY_SHIPPING_BASE(V)                                  \
-  V(harmony_intl_bigint, "BigInt.prototype.toLocaleString") \
+#define HARMONY_SHIPPING(V)                                       \
+  HARMONY_SHIPPING_BASE(V)                                        \
+  V(harmony_intl_bigint, "BigInt.prototype.toLocaleString")       \
+  V(harmony_intl_date_format_range, "DateTimeFormat formatRange") \
   V(harmony_intl_datetime_style, "dateStyle timeStyle for DateTimeFormat")
 #else
 #define HARMONY_SHIPPING(V) HARMONY_SHIPPING_BASE(V)