[issue46396] `Concatenate` should not raise any semantic errors

[Nikita Sobolev]

Nikita Sobolev <mail at sobolevn.me> added the comment:

I think that in case when we preserve the runtime checks, they should be covered by tests. Right now - they are not.

So, I will switch my PR to the initial version with a new test case.

Does this sound right? :)

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue46396>
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