[DO NOT MERGE] Add a crater lint for #145739

[ShoyuVanilla]

I took a some weird hack that lowers the following macro call

format_args!("{x} {x}");

into

{
    super let args = (&x,);
    super let args = [format_argument::new_display(args.0)];
    let __issue_145739 = (&x, (), ());
    unsafe {
        format_arguments::new(b"\xc0\x01 \xc8\x00\x00\x01\n\x00",
            &args)
    }
}

and then look for those let stmt with __issue_145739 later in the late lint pass.

It's because in early lint, we don't have much information other than AST, while in late lint, we have quite much information but not for AST 😂 So I have to leave some information about AST before executing late lint and I think this would be okay as this lint will be used only for crater runs

[ShoyuVanilla]

I have a crater permission by rust-lang/team#2038 but I'm not sure is this okay to run as I've never done it before 😅