API to get the FunctionType given a call site. #7055
Description
It is very common to need the FunctionType given a IL Call instruction. We should provide a nice API on the commonil.Call which does all the correct things for the user. By default this API should also take into account the usage of Call type overrides but have the option to disregard them. We may potentially even want to allow the setting of the function type given a Call instruction.