await-not-async missed & false alarms with genexp and list comprehensions

Bug Report

await-not-async does not warn on async for in list and dict comprehensions, and incorrectly does give a warning for await inside GeneratorExp.elt.
For list & dict comprehensions you should error on any await or async for, but for generator expressions it's only the generator that should be checked.

To Reproduce

def foo():
    ...

def should_not_error():
    (await x for x in foo())

def should_error():
    [x async for x in foo()]
    {k: v async for k, v in foo()}

def correctly_errors():
    (x for x in await foo())
    [await x for x in foo()]

def correctly_does_not_error():
    (x async for x in foo())

Expected Behavior

It should error on 8, 9, 12 and 13

Actual Behavior

$ mypy foofoo.py
foofoo.py:5: error: "await" outside coroutine ("async def")  [await-not-async]
foofoo.py:12: error: "await" outside coroutine ("async def")  [await-not-async]
foofoo.py:13: error: "await" outside coroutine ("async def")  [await-not-async]
Found 3 errors in 1 file (checked 1 source file)

Your Environment

$ mypy --version
mypy 1.13.0 (compiled: yes)

• Mypy version used:
• Mypy command-line flags:
• Mypy configuration options from mypy.ini (and other config files):
• Python version used:

also see https://github.com/astral-sh/ruff/issues/14167 that had the exact same issues

まず、await-not-async の実装と、GeneratorExp.elt、リスト内包表記、辞書内包表記の処理を見つけます。提示された例を mypy で再現し、8、9、12、13 行目で診断が発生する一方、5 行目と 14 行目のジェネレーター式のケースでは警告が発生しないことを確認します。