unsupported type error on char typedef

[fh-igd-mueller-roemer]

Describe the bug
When a typedef to char is used, autocxx fails with an unsupported type error.

To Reproduce

minimal.h

typedef char Standard_Character;
typedef Standard_Character * Standard_CString;

Standard_CString foo();

main.rs

use autocxx::prelude::*;

include_cpp! {
    #include "minimal.h"
    safety!(unsafe_ffi)
    generate!("foo")
}

fn main() {
    println!("Hello, world!");
}

Cargo.toml and build.rs as shown in the tutorial example.

Expected behavior
Code is generated as if char was being used.

Additional context

• autocxx(-build) 0.26.0
• Rust 1.77.1
• LLVM 17.0.1
• Visual Studio 2022 17.9.0
• Windows 10 22H2