Issue #25286: Merge dictionary view glossary from 3.4 into 3.5

diff --cc Doc/glossary.rst
Simple merge

diff --cc Doc/library/collections.abc.rst
index 563c1bc4c5314bf4898c778157197d6f6fc3b236,d73f05ae56b9a884f069d68544fb7ec289c3ebaa..d9b93ad26273edc189e5111157e94fce761362d2
--- 1/Doc/library/collections.abc.rst
--- 2/Doc/library/collections.abc.rst
+++ b/Doc/library/collections.abc.rst
@@@ -150,58 -122,8 +150,58 @@@ ABC                        Inherits fro
             KeysView
             ValuesView
  
-    ABCs for mapping, items, keys, and values :term:`views <view>`.
+    ABCs for mapping, items, keys, and values :term:`views <dictionary view>`.
  
 +.. class:: Awaitable
 +
 +   ABC for :term:`awaitable` objects, which can be used in :keyword:`await`
 +   expressions.  Custom implementations must provide the :meth:`__await__`
 +   method.
 +
 +   :term:`Coroutine` objects and instances of the
 +   :class:`~collections.abc.Coroutine` ABC are all instances of this ABC.
 +
 +   .. note::
 +      In CPython, generator-based coroutines (generators decorated with
 +      :func:`types.coroutine` or :func:`asyncio.coroutine`) are
 +      *awaitables*, even though they do not have an :meth:`__await__` method.
 +      Using ``isinstance(gencoro, Awaitable)`` for them will return ``False``.
 +      Use :func:`inspect.isawaitable` to detect them.
 +
 +   .. versionadded:: 3.5
 +
 +.. class:: Coroutine
 +
 +   ABC for coroutine compatible classes.  These implement the
 +   following methods, defined in :ref:`coroutine-objects`:
 +   :meth:`~coroutine.send`, :meth:`~coroutine.throw`, and
 +   :meth:`~coroutine.close`.  Custom implementations must also implement
 +   :meth:`__await__`.  All :class:`Coroutine` instances are also instances of
 +   :class:`Awaitable`.  See also the definition of :term:`coroutine`.
 +
 +   .. note::
 +      In CPython, generator-based coroutines (generators decorated with
 +      :func:`types.coroutine` or :func:`asyncio.coroutine`) are
 +      *awaitables*, even though they do not have an :meth:`__await__` method.
 +      Using ``isinstance(gencoro, Coroutine)`` for them will return ``False``.
 +      Use :func:`inspect.isawaitable` to detect them.
 +
 +   .. versionadded:: 3.5
 +
 +.. class:: AsyncIterable
 +
 +   ABC for classes that provide ``__aiter__`` method.  See also the
 +   definition of :term:`asynchronous iterable`.
 +
 +   .. versionadded:: 3.5
 +
 +.. class:: AsyncIterator
 +
 +   ABC for classes that provide ``__aiter__`` and ``__anext__``
 +   methods.  See also the definition of :term:`asynchronous iterator`.
 +
 +   .. versionadded:: 3.5
 +
  
  These ABCs allow us to ask classes or instances if they provide
  particular functionality, for example::