Issue #28808: PyUnicode_CompareWithASCIIString() now never raises exceptions.

diff --cc Doc/c-api/unicode.rst
Simple merge

diff --cc Include/unicodeobject.h
Simple merge

diff --cc Misc/NEWS
index e97cd6e657778a7b8de507b88aa87d069ee21103,1575c9ab53d94b67d9787a360dc01833db7b2cee..a29e50af4108aa0651cfa1049e1c25260fdf4e50
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -2,57 -2,10 +2,62 @@@
  Python News
  +++++++++++
  
 -What's New in Python 3.5.3 release candidate 1?
 -===============================================
 +What's New in Python 3.6.0 release candidate 1
 +==============================================
 +
 +*Release date: XXXX-XX-XX*
 +
 +Core and Builtins
 +-----------------
 +
 +- Issue #23722: Rather than silently producing a class that doesn't support
 +  zero-argument ``super()`` in methods, failing to pass the new
 +  ``__classcell__`` namespace entry up to ``type.__new__`` now results in a
 +  ``DeprecationWarning`` and a class that supports zero-argument ``super()``.
 +
 +- Issue #28797: Modifying the class __dict__ inside the __set_name__ method of
 +  a descriptor that is used inside that class no longer prevents calling the
 +  __set_name__ method of other descriptors.
 +
 +- Issue #28782: Fix a bug in the implementation ``yield from`` when checking
 +  if the next instruction is YIELD_FROM. Regression introduced by WORDCODE
 +  (issue #26647).
 +
 +Library
 +-------
 +
 +- Issue #27172: To assist with upgrades from 2.7, the previously documented
 +  deprecation of ``inspect.getfullargspec()`` has been reversed. This decision
 +  may be revisited again after the Python 2.7 branch is no longer officially
 +  supported.
 +
 +- Issue #24142: Reading a corrupt config file left configparser in an
 +  invalid state.  Original patch by Florian Höch.
 +
 +- Issue #28843: Fix asyncio C Task to handle exceptions __traceback__.
 +
++C API
++-----
++
++- Issue #28808: PyUnicode_CompareWithASCIIString() now never raises exceptions.
++
 +Documentation
 +-------------
 +
 +- Issue #23722: The data model reference and the porting section in the What's
 +  New guide now cover the additional ``__classcell__`` handling needed for
 +  custom metaclasses to fully support PEP 487 and zero-argument ``super()``.
 +
 +Tools/Demos
 +-----------
 +
 +- Issue #28023: Fix python-gdb.py didn't support new dict implementation.
 +
 +
 +What's New in Python 3.6.0 beta 4
 +=================================
  
 -Release date: TBA
 +*Release date: 2016-11-21*
  
  Core and Builtins
  -----------------

diff --cc Objects/unicodeobject.c
Simple merge