Function cv_get_call_checker_flags 

pub unsafe fn cv_get_call_checker_flags(
    my_perl: *mut PerlInterpreter,
    a: *mut CV,
    b: U32,
    c: *mut Perl_call_checker,
    d: *mut *mut SV,
    e: *mut U32,
)

thx shim for crate::cv_get_call_checker_flags.