regression from 0.30: "..." disappear from function pointer

[Dushistov]

Input C/C++ Header

void f(int a, ...);
struct Foo {
        void (*f)(void *p, void *obj, int a, ...);
};

Bindgen Invocation

$ bindgen test.h

Actual Results

extern "C" {
    pub fn f(a: ::std::os::raw::c_int, ...);
}
#[repr(C)]
#[derive(Debug, Copy, Clone)]
pub struct Foo {
    pub f: ::std::option::Option<
        unsafe extern "C" fn(
            p: *mut ::std::os::raw::c_void,
            obj: *mut ::std::os::raw::c_void,
            a: ::std::os::raw::c_int,
        ),
    >,
}

Expected Results

extern "C" {
    pub fn f(a: ::std::os::raw::c_int, ...);
}
#[repr(C)]
#[derive(Debug, Copy)]
pub struct Foo {
    pub f: ::std::option::Option<unsafe extern "C" fn(p:
                                                          *mut ::std::os::raw::c_void,
                                                      obj:
                                                          *mut ::std::os::raw::c_void,
                                                      a:
                                                          ::std::os::raw::c_int, ...)>,
}

as can you see variant generated by version <= 0.30 contains "..." at the end of Foo::f,
while bindgen > 0.30 missed "..." in the function pointer definition.

[emilio]

Culprit seems to be 61743aa, which is not a small commit... cc @fitzgen

[emilio]

I've got a fix.

[emilio]

Fix at #1217