fix(cldr): Wire in all sub KeyedDataProviders to CldrJsonDataProvider.

I've added a test for all keys based on the assumption that the prior
omission is a mistake rather than a design decision since the
sub-providers all implement KeyedDataProvider.

provider/cldr/src/transform/mod.rs

@@ -188,9 +188,24 @@ impl<'a> IterableProvider for CldrJsonDataProvider<'a> {
 impl<'a> KeyedDataProvider for CldrJsonDataProvider<'a> {
     fn supports_key(resc_key: &ResourceKey) -> Result<(), DataError> {
         PluralsProvider::supports_key(resc_key)
+            .or_else(|err| AliasesProvider::or_else_supports_key(err, resc_key))
             .or_else(|err| DateSymbolsProvider::or_else_supports_key(err, resc_key))
             .or_else(|err| DateSkeletonPatternsProvider::or_else_supports_key(err, resc_key))
             .or_else(|err| DatePatternsProvider::or_else_supports_key(err, resc_key))
             .or_else(|err| JapaneseErasProvider::or_else_supports_key(err, resc_key))
+            .or_else(|err| LikelySubtagsProvider::or_else_supports_key(err, resc_key))
+            .or_else(|err| ListProvider::or_else_supports_key(err, resc_key))
+            .or_else(|err| NumbersProvider::or_else_supports_key(err, resc_key))
+            .or_else(|err| TimeZonesProvider::or_else_supports_key(err, resc_key))
+    }
+}
+
+#[test]
+fn all_keys_are_known_at_compile_time() {
+    use crate::support::KeyedDataProvider;
+
+    for key in &get_all_cldr_keys() {
+        CldrJsonDataProvider::supports_key(key)
+            .expect("supports_key() should return ok for all supported keys")
     }
 }