Fix reloading issue with multiple decorated functions

[lruanova]

Resolved a bug where only the first function decorated would be reloaded on subsequent invocations.

• If having a similar decorated function in two different classes, only the first was reloaded. Fixed by checking both function and class names.

Little modifications on exception handling to better manage specific scenarios.

• Setting forever=True while sending an iterator to reloading function
• If an error was found on the code when running on a non-interactive environment, instead of waiting for the user to press enter, just throw an error message.