[Checkins] [zopefoundation/zope.interface] b27ff6: Add collections.IByteString and refactor to avoid ...

[Jason Madden]

  Branch: refs/heads/issue138
  Home:   https://github.com/zopefoundation/zope.interface
  Commit: b27ff65a8b40394660cd7e30d13171eab477d6fe
      https://github.com/zopefoundation/zope.interface/commit/b27ff65a8b40394660cd7e30d13171eab477d6fe
  Author: Jason Madden <jamadden at gmail.com>
  Date:   2020-02-11 (Tue, 11 Feb 2020)

  Changed paths:
    M src/zope/interface/common/__init__.py
    M src/zope/interface/common/collections.py
    M src/zope/interface/common/tests/test_collections.py

  Log Message:
  -----------
  Add collections.IByteString and refactor to avoid one-to-one assumption about ABCs and builtins.

bytearray turns out to violate that.