dirstate-item: use `any_tracked` instead of `state` to apply patches Differential Revision: https://phab.mercurial-scm.org/D11536

dirstate-item: use item's property instead of `state` in addremove Differential Revision: https://phab.mercurial-scm.org/D11535

dirstate-item: use `tracked` instead of `state` during copy detection Differential Revision: https://phab.mercurial-scm.org/D11534

dirstate-item: use `maybe_clean` instead of `state` in `strip` Differential Revision: https://phab.mercurial-scm.org/D11533

dirstate-item: use `tracked` instead of `state` in context.matches Differential Revision: https://phab.mercurial-scm.org/D11532

dirstate-item: use `tracked` instead of the `state` in context's iter Differential Revision: https://phab.mercurial-scm.org/D11531

dirstate-item: use `tracked` instead of the `state` in context Differential Revision: https://phab.mercurial-scm.org/D11530

dirstate-item: use item's property to deal with hgsubstate in mq This is clearer than processing the `state`. Differential Revision: https://phab.mercurial-scm.org/D11529

dirstate-item: use `added` instead of the `state` in the `mq` extension Differential Revision: https://phab.mercurial-scm.org/D11528

dirstate-item: use maybe_clean instead of `state` in the eol extension Differential Revision: https://phab.mercurial-scm.org/D11527

dirstate: move verification code within the dirstate itself This move implementation details further down the stack and make it the verification code easier to discover. Differential Revision: https://phab.mercurial-scm.org/D11526

dirstate-entry: use `?` for the state of entry without any tracking This is what the dirstate use at a higher level. Differential Revision: https://phab.mercurial-scm.org/D11525

dirstate-item: introduce a `any_tracked` property This property is True is the file is tracked anywhere, either the working copy, or any of the parent. Differential Revision: https://phab.mercurial-scm.org/D11524

dirstate-item: introduce a `maybe_clean` property It is useful for some extension that seek to invalidate some state. Differential Revision: https://phab.mercurial-scm.org/D11523

dirstate: add a `get_entry` method to the dirstate This method give access to the underlying `DirstateEntry` object (or an empty one if None was there). It should allow us to use the more semantic property of the entry instead of the state where we needs it. Differential Revision: https://phab.mercurial-scm.org/D11522

dirstate-item: Make constructor parameters optional … in the C implementation of DirstateItem, like they already were in the Python and Rust ones. Differential Revision: https://phab.mercurial-scm.org/D11521

hg-core: silence dead-code warning by adding RevlogEntry::revion() accessor Nightly `rustc` warns about the `RevlogEntry::rev` field not being used. Rather than removing it, I added an accessor since it seems useful to be able to get the entry's revision. Differential Revision: https://phab.mercurial-scm.org/D11548

rust: remove dead code Differential Revision: https://phab.mercurial-scm.org/D11549

rust-revset: support explicit `.` revision This is basically the same thing as not specifying a revision, except this is done in the revset resolution function. This allows calls like `rhg cat some-file -r .` to work without falling back. Differential Revision: https://phab.mercurial-scm.org/D11402

rust-revset: add separate match logic for shortcuts The next change will add a shortcut for the `.` revision. One day we might start matching `tip` and others, so this is an easy refactor. Differential Revision: https://phab.mercurial-scm.org/D11401

rhg: fall back if subrepos are detected We do not handle subrepos yet, the addition of the support for `-r .` will break if we don't fall back. Differential Revision: https://phab.mercurial-scm.org/D11403

rhg: fallback if `defaults` config is set for the current command Differential Revision: https://phab.mercurial-scm.org/D11381

rhg: fallback if the current command has any generic hook defined We do not handle hooks yet. Differential Revision: https://phab.mercurial-scm.org/D11380

rhg-cat: fallback in presence of a fileset These are unsupported so far. Differential Revision: https://phab.mercurial-scm.org/D11379

rhg-cat: fallback when detecting `.` or `..` path segments We do not normalize paths correctly yet, so exclude the shortcuts. Differential Revision: https://phab.mercurial-scm.org/D11378

rhg: add support for calling `rhg cat` without a revision Turns out the necessary pieces were there already. Like the Python implementation, we default to the first parent of the dirstate. Differential Revision: https://phab.mercurial-scm.org/D11377

branching: merge with stable

dirstate: Remove the Rust abstraction DirstateMapMethods This Rust trait used to exist in order to allow the DirstateMap class exposed to Python to be backed by either of two implementations: one similar to the Python implementation based on a "flat" `HashMap<HgPathBuf, DirstateEntry>`, and the newer one based on a tree of nodes matching the directory structure of tracked files. A boxed trait object was used with dynamic dispatch. With the flat implementation removed and only the tree one remaining, this abstraction is not useful anymore and the concrete type can be stored directly. It remains that the trait was implemented separately for `DirstateMap<'_>` (which takes a lifetime parameter) and `OwningDirstateMap` (whose job is to wrap the former and hide the lifetime parameter), with the latter impl only forwarding calls. This changeset also removes this forwarding. Instead, the methods formerly of the `DirstateMapMethods` trait are now inherent methods implemented for `OwningDirstateMap` (where they will actually be used) but in the module that defines `DirstateMap`. This unusual setup gives access to the private fields of `DirstateMap` from those methods. Differential Revision: https://phab.mercurial-scm.org/D11517