Updates:
* Update typeshed pin to commit 7de1ed9 from Jun 14.
* Specify option conflicts and required dependencies in uses decorator in
config.Postprocessor.
* Remove the --strict_namedtuple_checks flag. Its behavior is now enabled by
default.
* Support TypedDict construction via function call in pyi files, and use
TypedDict functional form if a keyword is used as a field name.
Bug fixes:
* Allow [signature-mismatch] disable to be put on any line of a function
signature.
* Teach pytype that _typeshed.NoneType is the same as type(None).
* Fix a check that was wrongly filtering out lambdas in function bodies.
* Check for misuse of ellipses in Callable.
* Add missing constants to _ctypes.
* xref:
* Fix function param indexing.
* Index class attributes defined as classvars.