evolve: fix test-tutorial.t to match new extra computation in core Recent patches changed the way we compute extras for rebase and graft. This changes the hashes in evolve's tests. This patch fixes the test test-tutorial.t

inhibit: make rebase see obsolescence even for visible nodes Rebase changed recently to take advantage of obsolescence markers to reduce the number of conflicts to resolve. Inhibit users were unable to leverage this new feature because none of their visible nodes could be obsolete. This patch makes the nodes that would be obsolete without inhibit, actually obsolete for the duration of the rebase to take advantage of the feature mentioned before.

inhibit: remove unused bookmark operation wrapping Before this patch, inhibit was wrapping bookmarks.write and bookmarks.recordchange. Since all the usage of bookmarks.write are not replaced by bookmarks.recordchange all bookmarks operation happen in a transaction. Inhibit already wraps the transaction mechanism to make sure that no revision can end up being obsolete and visible. This makes the wrapping of bookmarks.write superfluous. Wrapping bookmarks.recordchange was wrong in the first place and redundant with wrapping transactions.