Function gv_fetchmeth_autoload 

pub unsafe fn gv_fetchmeth_autoload(
    my_perl: *mut PerlInterpreter,
    stash: *mut HV,
    name: *const c_char,
    len: STRLEN,
    level: I32,
) -> *mut GV

thx shim for crate::gv_fetchmeth_autoload.