[intl] Stage harmony_intl_best_fit_matcher

Design Doc: https://docs.google.com/document/d/1cPGfiihn76yj2iAomKcspPFyLLcnk3WkCiqceBQPQyk/edit#
https://chromestatus.com/feature/5407573287108608

Bug: v8:7051
Change-Id: I880ca0b67f745283037226ce816a74d02128bfc9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2874950Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74393}

src/flags/flag-definitions.h

@@ -278,7 +278,6 @@ DEFINE_BOOL(harmony_shipping, true, "enable all shipped harmony features")
 #ifdef V8_INTL_SUPPORT
 #define HARMONY_INPROGRESS(V)                             \
   HARMONY_INPROGRESS_BASE(V)                              \
-  V(harmony_intl_best_fit_matcher, "Intl BestFitMatcher") \
   V(harmony_intl_displaynames_date_types, "Intl.DisplayNames date types")
 #else
 #define HARMONY_INPROGRESS(V) HARMONY_INPROGRESS_BASE(V)
@@ -290,7 +289,9 @@ DEFINE_BOOL(harmony_shipping, true, "enable all shipped harmony features")
   V(harmony_error_cause, "harmony error cause property")
 
 #ifdef V8_INTL_SUPPORT
-#define HARMONY_STAGED(V) HARMONY_STAGED_BASE(V)
+#define HARMONY_STAGED(V) \
+  HARMONY_STAGED_BASE(V)  \
+  V(harmony_intl_best_fit_matcher, "Intl BestFitMatcher")
 #else
 #define HARMONY_STAGED(V) HARMONY_STAGED_BASE(V)
 #endif