PEP 695 type-param names (e.g. `T` in `def func[T]:` or `class Box[T]:`)
bind in an annotation scope that nests the function/class body, so
their AST scope is the inner function/class — not the enclosing scope
where the FunctionDefExpr/ClassDefExpr CFG node lives. Visiting them
as children created scope-crossing CFG edges (nonLocalStep violations:
96 across CPython).
Drop them from the children list; the legacy CFG omitted them too.
TypeAliasStmt is unaffected (its type-params share scope with the
alias's enclosing scope).
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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