bpo-11105: Do not crash when compiling recursive ASTs (GH-20594)

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When compiling an AST object with a direct / indirect reference
cycles, on the conversion phase because of exceeding amount of
calls, a segfault was raised. This patch adds recursion guards to
places for preventing user inputs to not to crash AST but instead
raise a RecursionError.
(cherry picked from commit f3491242e4)

Co-authored-by: Batuhan Taskaya <batuhan@python.org>

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Miss Islington (bot) 2021-06-03 13:27:00 -07:00 • committed by GitHub

parent d2ab15f537

commit 976598d36b

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