test(semantic): add test cases for function redeclaration check

[overlookmotel]

Follow-on after #18231. Add test cases to make sure function redeclaration check works correctly in script, module, and CommonJS files.

[overlookmotel]

• refactor(semantic): move code into if block #18294 : 2 dependent PRs (#18295 , #18296 )
• perf(semantic): skip parent lookup for function declarations in Function::bind #18293
• perf(semantic): move check for function declaration out of is_function_part_of_if_statement #18292
• perf(semantic): skip checking redeclarations for function expressions #18291
• refactor(semantic): simplify checking if function is part of if statement #18290
• test(semantic): add test cases for function redeclaration check #18288 👈 (View in Graphite)
• main

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Merge activity

• Jan 20, 2:02 PM UTC: Boshen added this pull request to the Graphite merge queue.
• Jan 20, 2:15 PM UTC: Merged by the Graphite merge queue.