hash in test time_zones::names::test_compute_bcp47_ids_hash is not stable over architectures

[Provider] Add a constructor or helper for silent DataRequestMetadata

Consider optimizing range patterns

litemap: Consider returning concrete types on `LiteMap::{iter,iter_mut,keys,values}`

About the annotation in library crates

resb/zoneinfo64 soundness: relies on tuple layout of (i32, i32)

Wide/narrow mixup in datetime

Don't call them "variants" in PackedPattern docs

Implement hanidays spellout rules

Refactor calendar constructor roundtrip tests to be per-calendar or use test_all_cals