Fix the obscure corner case of three items in a plural

pkg/intl/test/message_extraction/verify_messages.dart

Index: pkg/intl/test/message_extraction/verify_messages.dart
diff --git a/pkg/intl/test/message_extraction/verify_messages.dart b/pkg/intl/test/message_extraction/verify_messages.dart
index d368c36aa15b064c54afdb08490dbe99eb8c1bba..1eafee8af6863266877c1033b49887b4d01e7fb2 100644
--- a/pkg/intl/test/message_extraction/verify_messages.dart
+++ b/pkg/intl/test/message_extraction/verify_messages.dart
@@ -34,6 +34,19 @@ verifyResult(ignored) {
   verify('Is zero plural?');
   verify('This is singular.');
   verify('This is plural (2).');
+  verify('This is plural (3).');
+  verify('This is plural (4).');
+  verify('This is plural (5).');
+  verify('This is plural (6).');
+  verify('This is plural (7).');
+  verify('This is plural (8).');
+  verify('This is plural (9).');
+  verify('This is plural (10).');
+  verify('This is plural (11).');
+  verify('This is plural (20).');
+  verify('This is plural (100).');
+  verify('This is plural (101).');
+  verify('This is plural (100000).');
   verify('Alice went to her house');
   verify('Bob went to his house');
   verify('cat went to its litter box');
@@ -81,6 +94,19 @@ verifyResult(ignored) {
   verify('Est-ce que nulle est pluriel?');
   verify('C\'est singulier');
   verify('C\'est pluriel (2).');
+  verify('C\'est pluriel (3).');
+  verify('C\'est pluriel (4).');
+  verify('C\'est pluriel (5).');
+  verify('C\'est pluriel (6).');
+  verify('C\'est pluriel (7).');
+  verify('C\'est pluriel (8).');
+  verify('C\'est pluriel (9).');
+  verify('C\'est pluriel (10).');
+  verify('C\'est pluriel (11).');
+  verify('C\'est pluriel (20).');
+  verify('C\'est pluriel (100).');
+  verify('C\'est pluriel (101).');
+  verify('C\'est pluriel (100000).');
   verify('Alice est allée à sa house');
   verify('Bob est allé à sa house');
   verify('cat est allé à sa litter box');
@@ -128,6 +154,19 @@ verifyResult(ignored) {
   verify('Ist Null Plural?');
   verify('Dies ist einmalig');
   verify('Dies ist Plural (2).');
+  verify('Dies ist Plural (3).');
+  verify('Dies ist Plural (4).');
+  verify('Dies ist Plural (5).');
+  verify('Dies ist Plural (6).');
+  verify('Dies ist Plural (7).');
+  verify('Dies ist Plural (8).');
+  verify('Dies ist Plural (9).');
+  verify('Dies ist Plural (10).');
+  verify('Dies ist Plural (11).');
+  verify('Dies ist Plural (20).');
+  verify('Dies ist Plural (100).');
+  verify('Dies ist Plural (101).');
+  verify('Dies ist Plural (100000).');
   verify('Alice ging zu ihrem house');
   verify('Bob ging zu seinem house');
   verify('cat ging zu seinem litter box');