[Checkins] [zopefoundation/zope.interface] 52aa21: Add tests for comparing InterfaceClass/Implements ...

[Jason Madden]

  Branch: refs/heads/faster-eq-hash-comparison
  Home:   https://github.com/zopefoundation/zope.interface
  Commit: 52aa21889559c6c2e7f14fcc8a264c11de856fa3
      https://github.com/zopefoundation/zope.interface/commit/52aa21889559c6c2e7f14fcc8a264c11de856fa3
  Author: Jason Madden <jamadden at gmail.com>
  Date:   2020-03-12 (Thu, 12 Mar 2020)

  Changed paths:
    M CHANGES.rst
    M src/zope/interface/_zope_interface_coptimizations.c
    M src/zope/interface/interface.py
    M src/zope/interface/tests/test_declarations.py
    M src/zope/interface/tests/test_interface.py

  Log Message:
  -----------
  Add tests for comparing InterfaceClass/Implements objects to things without the required attributes.

And fix the C handling of this case.