[libc++][doc] Update spaceship status page

[avogelsgesang]

Summary

• operator<=> for iota_view::iterator was enabled in 8320017b79eb8
• Removed P2405R0 which was not accepted and seems inactive (https://github.com/cplusplus/papers/issues/1075)
• Added the previously missing operator== for filesystem::space_info to the tracking list.
• Updated the "Assignee" for string_view, string as Mark de Wever mentioned he is working on them in Discord
• Updated the status of the items for which I sent review requests yesterday.

[avogelsgesang]

Fix incorrect state: 'Done' -> 'Complete'

[Mordante]

As discussed on Discord there are more documentation updates missing.

[avogelsgesang]

Additional updates

[Mordante]

Thanks for the update, LGTM!
Do you need assistance with landing the patch? If so please provide the name and e-mail address you want to use. (I'm not sure whether you used them uploading the patch in Phabricator.)

[avogelsgesang]

Do you need assistance with landing the patch? If so please provide the name and e-mail address you want to use.

Yes, I need assistance. I do not have merge privileges.
Name: Adrian Vogelsgesang
Email: [e-mail]

[Mordante]

In D130855#3694152, @avogelsgesang wrote:

Do you need assistance with landing the patch? If so please provide the name and e-mail address you want to use.

Yes, I need assistance. I do not have merge privileges.
Name: Adrian Vogelsgesang
Email: [e-mail]

I've landed on your behalf.

libcxx/docs/Status/SpaceshipPapers.csv

 "Number","Name","Status","First released version"
 `P1614R2 <https://wg21.link/P1614>`_,The Mothership has Landed,|In Progress|,
 `P2404R0 <https://wg21.link/P2404>`_,"Relaxing equality_comparable_with's, totally_ordered_with's, and three_way_comparable_with's common reference requirements to support move-only types",,
-`P2405R0 <https://wg21.link/P2405>`_,nullopt_t and nullptr_t should both have operator<=> and operator==,,
 `LWG3330 <https://wg21.link/LWG3330>`_,Include <compare> from most library headers,"|Complete|","13.0"
 `LWG3347 <https://wg21.link/LWG3347>`_,"std::pair<T, U> now requires T and U to be less-than-comparable",|Nothing To Do|,
 `LWG3350 <https://wg21.link/LWG3350>`_,Simplify return type of lexicographical_compare_three_way,|Nothing To Do|,
 `LWG3360 <https://wg21.link/LWG3360>`_,three_way_comparable_with is inconsistent with similar concepts,|Nothing To Do|,
 `LWG3380 <https://wg21.link/LWG3380>`_,common_type and comparison categories,|Nothing To Do|,
 `LWG3395 <https://wg21.link/LWG3395>`_,Definition for three-way comparison needs to be updated,|Nothing To Do|,

libcxx/docs/Status/SpaceshipProjects.csv

 | `[tuple.rel] <https://wg21.link/tuple.rel>`_,| `tuple <https://reviews.llvm.org/D108250>`_,[expos.only.func],Kent Ross,|Complete|
 "| `[optional.relops] <https://wg21.link/optional.relops>`_
 | `[optional.nullops] <https://wg21.link/optional.nullops>`_
 | `[optional.comp.with.t] <https://wg21.link/optional.comp.with.t>`_","| optional
 | nullopt",None,Kent Ross,|In Progress|
 "| `[variant.relops] <https://wg21.link/variant.relops>`_
 | `[variant.monostate.relops] <https://wg21.link/variant.monostate.relops>`_","| monostate
 | variant",None,Kent Ross,|In Progress|
-| `[unique.ptr.special] <https://wg21.link/unique.ptr.special>`_,| unique_ptr,[comparisons.three.way],Unassigned,|Not Started|
-| `[util.smartptr.shared.cmp] <https://wg21.link/util.smartptr.shared.cmp>`_,| shared_ptr,[comparisons.three.way],Unassigned,|Not Started|
+| `[unique.ptr.special] <https://wg21.link/unique.ptr.special>`_,| `unique_ptr <https://reviews.llvm.org/D130838>`_,[comparisons.three.way],Adrian Vogelsgesang,|In Progress|
+| `[util.smartptr.shared.cmp] <https://wg21.link/util.smartptr.shared.cmp>`_,| `shared_ptr <https://reviews.llvm.org/D130852>`_,[comparisons.three.way],Adrian Vogelsgesang,|In Progress|
 | `[type.index.members] <https://wg21.link/type.index.members>`_,| type_index,None,Unassigned,|Not Started|
 | `[charconv.syn] <https://wg21.link/charconv.syn>`_,| to_chars_result,None,Mark de Wever,|Complete|
 | `[charconv.syn] <https://wg21.link/charconv.syn>`_,| from_chars_result,None,Mark de Wever,|Complete|
 | `[stacktrace.entry.cmp] <https://wg21.link/stacktrace.entry.cmp>`_,| stacktrace_entry,None,Unassigned,|Not Started|
 | `[stacktrace.basic.cmp] <https://wg21.link/stacktrace.basic.cmp>`_,| basic_stacktrace,[alg.three.way],Unassigned,|Not Started|
-| `[string.cmp] <https://wg21.link/string.cmp>`_,| `basic_string <https://reviews.llvm.org/D80895>`_,None,Christopher Di Bella,|In Progress|
-| `[string.view.comparison] <https://wg21.link/string.view.comparison>`_,| `basic_string_view <https://reviews.llvm.org/D80891>`_,None,Christopher Di Bella,|In Progress|
+| `[string.cmp] <https://wg21.link/string.cmp>`_,| basic_string,None,Mark de Wever,|In Progress|
+| `[string.view.comparison] <https://wg21.link/string.view.comparison>`_,| `basic_string_view <https://reviews.llvm.org/D130295>`_,None,Mark de Wever,|In Progress|
 | `[array.syn] <https://wg21.link/array.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| array,[expos.only.func],Unassigned,|Not Started|
 | `[deque.syn] <https://wg21.link/deque.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| deque,[expos.only.func],Unassigned,|Not Started|
 | `[forward.list.syn] <https://wg21.link/forward.list.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| forward_list,[expos.only.func],Unassigned,|Not Started|
 | `[list.syn] <https://wg21.link/list.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| list,[expos.only.func],Unassigned,|Not Started|
 | `[vector.syn] <https://wg21.link/vector.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),| vector,[expos.only.func],Unassigned,|Not Started|
 | `[associative.map.syn] <https://wg21.link/associative.map.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),"| map
 | multimap",[expos.only.func],Unassigned,|Not Started|
 | `[associative.set.syn] <https://wg21.link/associative.set.syn>`_ (`general <https://wg21.link/container.requirements.general#14>`_),"| multiset
 | set",[expos.only.func],Unassigned,|Not Started|
 | `[queue.ops] <https://wg21.link/queue.ops>`_,| queue,None,Unassigned,|Not Started|
 | `[stack.ops] <https://wg21.link/stack.ops>`_,| stack,None,Unassigned,|Not Started|
 | `[reverse.iter.cmp] <https://wg21.link/reverse.iter.cmp>`_,| reverse_iterator,None,Mikhail Maltsev,|Complete|
 | `[move.iter.op.comp] <https://wg21.link/move.iter.op.comp>`_,| move_iterator,None,Unassigned,|Not Started|
 | `[counted.iter.cmp] <https://wg21.link/counted.iter.cmp>`_,| counted_iterator,None,Unassigned,|Not Started|
-| `[range.iota.iterator] <https://wg21.link/range.iota.iterator>`_,| ranges::iota_view::iterator,[concepts.cmp],Unassigned,|Not Started|
-| `[range.transform.iterator] <https://wg21.link/range.transform.iterator>`_,| ranges::transform_view::iterator,[concepts.cmp],Unassigned,|Not Started|
+| `[range.iota.iterator] <https://wg21.link/range.iota.iterator>`_,| `ranges::iota_view::iterator <https://reviews.llvm.org/D110774>`_,[concepts.cmp],Arthur O'Dwyer,|Complete|
+| `[range.transform.iterator] <https://wg21.link/range.transform.iterator>`_,| `ranges::transform_view::iterator <https://reviews.llvm.org/D110774>`_,[concepts.cmp],Arthur O'Dwyer,|Complete|
 | `[range.elements.iterator] <https://wg21.link/range.elements.iterator>`_,| ranges::elements_view::iterator,[concepts.cmp],Unassigned,|Not Started|
 | `[time.duration.comparisons] <https://wg21.link/time.duration.comparisons>`_, "chrono::duration", None, Mark de Wever, |Not Started|
 | `[time.point.comparisons] <https://wg21.link/time.point.comparisons>`_, "chrono::point", None, Mark de Wever, |Not Started|
 "| `[time.cal.day.nonmembers] <https://wg21.link/time.cal.day.nonmembers>`_
 | `[time.cal.month.nonmembers] <https://wg21.link/time.cal.month.nonmembers>`_
 | `[time.cal.year.nonmembers] <https://wg21.link/time.cal.year.nonmembers>`_
 | `[time.cal.md.nonmembers] <https://wg21.link/time.cal.md.nonmembers>`_
 | `[time.cal.mdlast] <https://wg21.link/time.cal.mdlast>`_
 | `[time.cal.ym.nonmembers] <https://wg21.link/time.cal.ym.nonmembers>`_
 | `[time.cal.ymd.nonmembers] <https://wg21.link/time.cal.ymd.nonmembers>`_
 | `[time.cal.ymdlast.nonmembers] <https://wg21.link/time.cal.ymdlast.nonmembers>`_","| chrono::day
 | chrono::month
 | chrono::year
 | chrono::month_day
 | chrono::month_day_last
 | chrono::year_month
 | chrono::year_month_day
 | chrono::year_month_day_last",None,Mark de Wever,|Complete|
 "| `[time.zone.nonmembers] <https://wg21.link/time.zone.nonmembers>`_
 | `[time.zone.leap.nonmembers] <https://wg21.link/time.zone.leap.nonmembers>`_
 | `[time.zone.link.nonmembers] <https://wg21.link/time.zone.link.nonmembers>`_","| chrono::time_zone
 | chrono::leap_second
 | chrono::time_zone_link",A ``<chrono>`` implementation,Unassigned,|Not Started|
-| `[fs.path.nonmember] <https://wg21.link/fs.path.nonmember>`_,| filesystem::path,None,Unassigned,|Not Started|
-| `[fs.dir.entry.obs] <https://wg21.link/fs.dir.entry.obs>`_,| filesystem::directory_entry,None,Unassigned,|Not Started|
-| `[re.submatch.op] <https://wg21.link/re.submatch.op>`_,| sub_match,None,Unassigned,|Not Started|
+| `[fs.filesystem.syn] <https://wg21.link/fs.filesystem.syn>`_,| `filesystem::space_info <https://reviews.llvm.org/D130861>`_,None,Adrian Vogelsgesang,|In Progress|
+| `[fs.path.nonmember] <https://wg21.link/fs.path.nonmember>`_,| `filesystem::path <https://reviews.llvm.org/D130859>`_,None,Adrian Vogelsgesang,|In Progress|
+| `[fs.dir.entry.obs] <https://wg21.link/fs.dir.entry.obs>`_,| `filesystem::directory_entry <https://reviews.llvm.org/D130860>`_,None,Adrian Vogelsgesang,|In Progress|
+| `[re.submatch.op] <https://wg21.link/re.submatch.op>`_,| sub_match,None,Mark de Wever,|In Progress|
 | `[thread.thread.id] <https://wg21.link/thread.thread.id>`_,| thread::id,None,Unassigned,|Not Started|