tests: fix formatting issue in run-tests.py after c194e93d1ebc Differential Revision: https://phab.mercurial-scm.org/D12375

rust-hg-core: use correct type for libc hostname buffer The type of libc::c_char is u8 on aarch64 rather than i8, which causes the use of a specifically-typed constant to fail. Differential Revision: https://phab.mercurial-scm.org/D12373

import-checker: allow symbol imports from typing module As we add typing annotations, we'll want to use a lot of symbols from the `typing` module. Typing `typing` all the time will be annoying. Let's allow symbol imports from this module. While I was here, I changed some comments from "whitelist" to "allow list" as the former is non-inclusive terminology. Differential Revision: https://phab.mercurial-scm.org/D12365

pycompat: remove json.loads polyfill for Python 3.5 We no longer support Python 3.5 so this can be deleted. Differential Revision: https://phab.mercurial-scm.org/D12364

pycompat: remove check for Python >= 3.6 We dropped support for Python 3.5 so this is always true. Differential Revision: https://phab.mercurial-scm.org/D12363

hgdemandimport: delete check for Python 3.5 We dropped support for Python 3.5. So we no longer need to do this. Differential Revision: https://phab.mercurial-scm.org/D12362