[PEP 695] Support Annotated[...] in new-style type aliases #17777
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The rvalue expression isn't semantically analyzed, so we can't rely on the
fullname
attribute to check if there is a reference toAnnotated
. Instead, use a lookup function provided by the caller to determine the fullname.Error reporting in the second argument to
Annotated
is still inconsistent, but this seems lower priority. I'll create a follow-up issue about (or update an existing issue if one exists).Fixes #17751.