* PyObject_CallFunctionObjArgs(func, NULL) => _PyObject_CallNoArg(func)
* PyObject_CallFunctionObjArgs(func, arg, NULL) => _PyObject_CallArg1(func, arg)

PyObject_CallFunctionObjArgs() allocates 40 bytes on the C stack and requires
extra work to "parse" C arguments to build a C array of PyObject*.

_PyObject_CallNoArg() and _PyObject_CallArg1() are simpler and don't allocate
memory on the C stack.

This change is part of the fastcall project. The change on listsort() is
related to the issue #23507.

* Callable object: callable, o, callable_object => func
* Object for method calls: o => obj
* Method name: name or nameid => method

Cleanup also the C code:

* Don't initialize variables to NULL if they are not used before their first
  assignement
* Add braces for readability

Issue #26273: Add new socket.TCP_CONGESTION (Linux 2.6.13) and
socket.TCP_USER_TIMEOUT (Linux 2.6.37) constants.

Patch written by Omar Sandoval.

Issue #26273: Add new socket.TCP_CONGESTION (Linux 2.6.13) and
socket.TCP_USER_TIMEOUT (Linux 2.6.37) constants.

Patch written by Omar Sandoval.

 a descriptor that is used inside that class no longer prevents calling the
 __set_name__ method of other descriptors.

 a descriptor that is used inside that class no longer prevents calling the
 __set_name__ method of other descriptors.

Issue #28821.

Add also a message to show that the command did something :-)

Thanks to Serhiy Storchaka for pointing out the missing notes.

Patch by Elvis Pranskevichus.

Remove CALL_PROFILE.

Issue #28799:

* Remove the PyEval_GetCallStats() function.
* Deprecate the untested and undocumented sys.callstats() function.
* Remove the CALL_PROFILE special build

Use the sys.setprofile() function, cProfile or profile module to profile
function calls.

Fixes #24142: [configparser] always join multiline values to not leave the parser in an invalid state

in the documentation.

in the documentation.

in the documentation.

Patch by Wojtek Ruszczewski.

WARNING: Inline emphasis start-string without end-string.

Patch by Julien Palard.

Patch by Julien Palard.

Use a context manager to close the Python file. Replace also open() with
tokenize.open() to handle coding cookie if any in Lib/opcode.py.

Remove aliases from the C module. Always implement bisect() and insort()
aliases in bisect.py

Remove also the "# backward compatibility" command, there is no plan to
deprecate nor remove these aliases. When keys are equal, it makes sense to use
bisect.bisect() and bisect.insort().

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).

Reviewed by Serhiy Storchaka and Yury Selivanov.