Wrongful detection of `CallOfParameter` for function calls with the same name as a parameter

[lukarade]

Describe the bug

If a function is called inside another function, which by chance defines a parameter with the same name as the called function, a CallOfParameter is falsely added to the reasons of the calling function.

Example

def foo():
    pass

def bar(foo):
    foo() # Wrong CallOfParameter: Here the function foo is called, which is pure

To Reproduce

1. Copy the example into the test file for testing the purity analysis
2. Run the tests

Expected behavior

For such cases, a special condition must be implemented to check if the function or the parameter is referenced.

Screenshots (optional)

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Additional Context (optional)

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