test(semantic): add scope tests for IIFEs

[DonIsaac]

DO NOT MERGE THIS PR UNTIL THE ASSOCIATED ISSUE HAS BEEN RESOLVED!

Reproduction for the bug described in #4452. Part of #4445

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[DonIsaac]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• test(semantic): add scope tests for IIFEs #4451 👈
• feat(ast): add AstKind::get_container_scope_id #4450
• main

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[codspeed-hq]

CodSpeed Performance Report

Merging #4451 will not alter performance

_{Comparing don/07-24-test_semantic_add_scope_tests_for_iifes (6f83fc2) with main (fd363d1)}

Summary

✅ 32 untouched benchmarks

[overlookmotel]

@DonIsaac Do these tests pass now? If so, is there any harm in merging this PR, rather than closing it?

[DonIsaac]

@overlookmotel there is one case in them that is passing that I'm not sure should be. I'll let @Dunqing decide.