test-http-bad-server: align output by using `;` This is the only message using a `,` instead of `;` and that seems unintentional. I am unifying the message before unigying the code. Differential Revision: https://phab.mercurial-scm.org/D12039

test-http-bad-server: highlight each test with section Small "documentation" change to highlight each individual tests better. Differential Revision: https://phab.mercurial-scm.org/D12038

test-http-bad-server: rename config to use `-` This make things much more readable. Differential Revision: https://phab.mercurial-scm.org/D12037

test-http-bad-server: move the extension in `testlib` This seems like a better location for it. Differential Revision: https://phab.mercurial-scm.org/D12036

requirements: remove the `localrepo.supportedformat` attribute It is not longer used anywhere. Differential Revision: https://phab.mercurial-scm.org/D12035

requirements: sort _basesupported This will make the next changeset clearer. Differential Revision: https://phab.mercurial-scm.org/D12034

requirements: move the comment about manifestv2 in the module This is about requirements, so lets put it into the requirements module. We are about to remove code it was previously attached too. Differential Revision: https://phab.mercurial-scm.org/D12033

stream-clone: add a explicit set list requirements relevant to stream clone This set explicitly lists all the requirements that "stream clone" will preserve. Any other one will not be preserved. The role of listing the relevant one was previously filled by `repo.supportedformat`, but it seems clearer to use that such global and explicit set. The `repo.supportedformat` attribute will be cleaned up in a later changeset The true meaning of `repo.supportedformat` vs `repo._basesupported` was lost over time so, the content is currently bad. For example, `dirstate-v2` is currently considered relevant to the stream clone, or internal phase is missing. We kept the same content in this changeset and we will fix them later. Differential Revision: https://phab.mercurial-scm.org/D12032

stream-clone: filter possible missing requirements using all supported one The `supportedformat` requirements is missing some important requirements and it seems better to filter out with all requirements we know, not just an "arbitrary" subset. This is especially relevant as we about to phase out the `supportedformat` class attribute. (a backport of this change to stable should be sent soon). Differential Revision: https://phab.mercurial-scm.org/D12031

requirements: move "bookmark in store" requirements in the right module There seems to be no reasons to not have it with the others. Differential Revision: https://phab.mercurial-scm.org/D12030