remotefilelog: use `get_unique_pull_path` in `getflogheads` Another command moved to the new API, hooray. Differential Revision: https://phab.mercurial-scm.org/D10421

summary: use the new APIs Summary can perform some incoming/outgoing queries (that should be common to the other command with the same needs, but that is another story). We now use the new APIs to do so. The current code behavior is a bit fishy, relying to the fact "default" will be picked as the destination in last resort. I did not altered that, but left various comment to highlight the issue. Differential Revision: https://phab.mercurial-scm.org/D10420

share: use `get_clone_path` Since `hg share` is mostly like clone, do the same changes there. Differential Revision: https://phab.mercurial-scm.org/D10419

init: use `get_clone_path` when suitable `hg init` has this weird feature were you can refer to `[paths]` entry select the path to initialize. We move that code to the new APIs. Differential Revision: https://phab.mercurial-scm.org/D10418

clone: use `get_clone_path` "Surprisingly", the new API is well suited for `hg clone` too. Differential Revision: https://phab.mercurial-scm.org/D10417

incoming: kill the `repo._subtoppath =` hack We do the same as for `hg outgoing`, instead of relying on implicit passing value by monkey punching them onto the repo object, we pass equivalent information by argument to the proper function. This is way cleaner. Differential Revision: https://phab.mercurial-scm.org/D10416