Functional tests for argument clinic

[kumaraditya303]

Currently there are no functional tests for argument clinic and the present tests mostly verify generated code not the runtime behavior. This can lead to bugs like #32092 so adding tests would help avoid such bugs.

A new module with functions using all function signatures can be created which will return the tuple of the args so that testing it would be easy.

• PR: gh-96002: Add functional test for Argument Clinic #96178

• PR: [3.11] gh-96002: Add functional test for Argument Clinic (GH-96178) #100230

• PR: [3.10] gh-96002: Add functional test for Argument Clinic (GH-96178) #100232