[intl] Implement Intl.PluralRules

test/test262/test262.status

Index: test/test262/test262.status
diff --git a/test/test262/test262.status b/test/test262/test262.status
index 417515fb6676e196ca88bdedc60142734ec4f61d..f65feb46fb4873c25ffd37d7dfca9654dae921ec 100644
--- a/test/test262/test262.status
+++ b/test/test262/test262.status
@@ -426,7 +426,7 @@
   'intl402/String/prototype/toLocaleUpperCase/special_casing_Turkish': ['--icu-case-mapping'],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=5601
-  'intl402/PluralRules/*': [SKIP],
+  'intl402/PluralRules/*': ['--harmony-plural-rules'],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=5855
   'language/expressions/async-generators/*': [SKIP],
@@ -570,6 +570,9 @@
   'built-ins/Array/prototype/values/iteration-mutable': [FAIL],
   'built-ins/Array/prototype/Symbol.unscopables/value': [FAIL],
 
+  # https://github.com/tc39/proposal-intl-plural-rules/issues/29
+  'intl402/PluralRules/prototype/prototype': [FAIL],
+
   ############################ INVALID TESTS #############################
 
   # Test makes unjustified assumptions about the number of calls to SortCompare.