Builtin functions are recorded

[apotterri]

Functions that have type types.BuiltinFunctionType or types.BuiltinMethodType are currently excluded from recordings. Many of the functions that should be auto-labeled are builtins.

[apotterri]

Additionally, the implementation approach of PyQt5 means that all member functions appear to be builtin functions. As a result, they're ignored when recording apps (e.g. https://github.com/apotterri/IHM).