This is part five (c), and focuses on sharing strict types between
parser.py and expr.py.

gitlab: https://gitlab.com/jsnow/qemu/-/commits/python-qapi-cleanup-pt5c

Every commit should pass with:
 - `isort -c qapi/`
 - `flake8 qapi/`
 - `pylint --rcfile=qapi/pylintrc qapi/`
 - `mypy --config-file=qapi/mypy.ini qapi/`

V3:
 - Squashed a bunch of patches into the QAPIExpression patch
 - Added a few 'info' locals whenever there were >= 3 usages to help
   minimize some churn
 - Removed some type redundancy from docstrings
 - Brought along the two patches from pt0 that I want merged.
 - Removed 'pexpr' entirely, there's no intermediate state where it's
   needed now.
 - Minor style issues.

John Snow (7):
  qapi: Update flake8 config
  qapi: update pylint configuration
  qapi/expr: Split check_expr out from check_exprs
  qapi/expr: add typing workaround for AbstractSet
  qapi/parser: add QAPIExpression type
  qapi: remove _JSONObject
  qapi: remove JSON value FIXME

 scripts/qapi/.flake8   |   3 +-
 scripts/qapi/expr.py   | 231 +++++++++++++++++++----------------------
 scripts/qapi/parser.py |  49 +++++----
 scripts/qapi/pylintrc  |   1 +
 scripts/qapi/schema.py |  72 +++++++------
 5 files changed, 181 insertions(+), 175 deletions(-)

-- 
2.39.0