[schema] drop monkeypatch "name_for" on BaseConstraint BaseConstraint doesn't have "name_for" method, this is just an addition for cubicweb needs. Implement this as a function instead of a monkeypatch to avoid having "name_for" not defined because cubicweb.schema hasn't been imported. In particular this fix running cubicweb/server/test/unittest_schema2sql.py::SQLSchemaTC::test_known_values alone.

[fix] this check was too restrictive and broke tests

[fix] exception type has changed

[server.rqlannotation] refactor to make class SQLGenAnnotator consistent _annotate_select() takes SQLGenAnnotator as a first argument and is not used anywhere except in SQLGenAnnotator. This looks like a method to me. Let us fold it into its class.

Drop most of deprecated code As in previous changesets, most code has been deprecated since a very long time. This changeset concerns "core" cubicweb modules (e.g. "server", "appobjects") for which it's not easy to handle change atomically. In cubicweb/server/querier.py, we adjust empty_rset() function as a result of "rqlst" argument of ResultSet being dropped. (There was no use of the keyword argument anyways.)

Drop deprecated code in cubicweb.hooks Changelog entry will come in a later changeset.

Drop deprecated code in cubicweb.entities Also dropped an unused import along the way. Changelog entry will come in a later changeset.

Drop deprecated code in cubicweb.devtools Changelog entry will come in a later changeset.