040000 tree 55a7ca8ab652e06561128fd42c975e67eaad9624	optional.bad_optional_access
040000 tree 6f95f317ea5f321c89a531796b2d560deb021958	optional.comp_with_t
040000 tree e71360ff5daf3a79beed23b97489dae8fbe5caf6	optional.hash
040000 tree 4132571803db2efa3964eddf45746d934e20e828	optional.nullops
040000 tree 60bd6436f1bec94ab8c991432b56fbe37164a13b	optional.nullopt
040000 tree e9243c1a1e282062640c2ea727552eb25f0efa47	optional.object
040000 tree 5f7867bb2c0a9063c97d035cfef968cd0eb0b06c	optional.relops
040000 tree 9d50508ab0f0628160122b249349dca542bbd8b9	optional.specalg
040000 tree ebdb942f254cf90240273377625c705ddd8f348b	optional.syn